byebug: INTERNAL ERROR!!! undefined method `+' for nil:NilClass

I use RubyMine 7.0.4, ruby 2.2.0, rails 4.2.0, phusion passenger 4.0.58

App 8203 stdout: INTERNAL ERROR!!! undefined method `+' for nil:NilClass
App 8203 stdout: 
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/byebug-3.5.1/lib/byebug/processors/command_processor.rb:67:in `at_breakpoint'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/byebug-3.5.1/lib/byebug/processors/command_processor.rb:51:in `block in at_breakpoint'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/byebug-3.5.1/lib/byebug/processors/command_processor.rb:49:in `synchronize'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/byebug-3.5.1/lib/byebug/processors/command_processor.rb:49:in `at_breakpoint'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/byebug-3.5.1/lib/byebug/context.rb:68:in `at_breakpoint'
App 8203 stdout:    /home/gshilin/projects/baligam4/app/views/shop/admin/products/_form.html.slim:106:in `block (2 levels) in _app_views_shop_admin_products__form_html_slim___2242150613217816175_70109577529300'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `block in capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:200:in `with_output_buffer'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:1924:in `block in fields_for_nested_model'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `block in capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:200:in `with_output_buffer'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:714:in `fields_for'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:1923:in `fields_for_nested_model'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/bundler/gems/nested_form-1b0689dfb4d2/lib/nested_form/builder_mixin.rb:98:in `fields_for_nested_model'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:1909:in `block in fields_for_with_nested_attributes'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/relation/delegation.rb:46:in `each'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/relation/delegation.rb:46:in `each'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:1907:in `fields_for_with_nested_attributes'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/bundler/gems/nested_form-1b0689dfb4d2/lib/nested_form/builder_mixin.rb:87:in `fields_for_with_nested_attributes'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:1581:in `fields_for'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/simple_form-3.1.0/lib/simple_form/action_view_extensions/builder.rb:27:in `simple_fields_for'
App 8203 stdout:    /home/gshilin/projects/baligam4/app/views/shop/admin/products/_form.html.slim:101:in `block in _app_views_shop_admin_products__form_html_slim___2242150613217816175_70109577529300'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `block in capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:200:in `with_output_buffer'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/bundler/gems/nested_form-1b0689dfb4d2/lib/nested_form/view_helper.rb:16:in `block in simple_nested_form_for'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `block in capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:200:in `with_output_buffer'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/capture_helper.rb:38:in `capture'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:444:in `form_for'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/simple_form-3.1.0/lib/simple_form/action_view_extensions/form_helper.rb:26:in `block in simple_form_for'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/simple_form-3.1.0/lib/simple_form/action_view_extensions/form_helper.rb:45:in `with_simple_form_field_error_proc'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/simple_form-3.1.0/lib/simple_form/action_view_extensions/form_helper.rb:25:in `simple_form_for'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/bundler/gems/nested_form-1b0689dfb4d2/lib/nested_form/view_helper.rb:15:in `simple_nested_form_for'
App 8203 stdout:    /home/gshilin/projects/baligam4/app/views/shop/admin/products/_form.html.slim:1:in `_app_views_shop_admin_products__form_html_slim___2242150613217816175_70109577529300'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/template.rb:145:in `block in render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:166:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/template.rb:333:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/template.rb:143:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/partial_renderer.rb:339:in `render_partial'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/partial_renderer.rb:310:in `block in render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:in `block in instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/partial_renderer.rb:309:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/renderer.rb:47:in `render_partial'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/helpers/rendering_helper.rb:35:in `render'
App 8203 stdout:    /home/gshilin/projects/baligam4/app/views/shop/admin/products/edit.html.slim:7:in `_app_views_shop_admin_products_edit_html_slim__4517088759026669161_70109577286520'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/template.rb:145:in `block in render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:166:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/template.rb:333:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/template.rb:143:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:in `block in instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/act
App 8203 stdout: ivesupport-4.2.0/lib/active_support/notifications.rb:164:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/template_renderer.rb:52:in `render_template'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/template_renderer.rb:14:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/renderer.rb:42:in `render_template'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/renderer/renderer.rb:23:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/rendering.rb:100:in `_render_template'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/streaming.rb:217:in `_render_template'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/rendering.rb:83:in `render_to_body'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/rendering.rb:32:in `render_to_body'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/renderers.rb:37:in `render_to_body'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/abstract_controller/rendering.rb:25:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/rendering.rb:16:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
App 8203 stdout:    /home/gshilin/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/benchmark.rb:303:in `realtime'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/core_ext/benchmark.rb:12:in `ms'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:41:in `block in render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:40:in `render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/implicit_render.rb:10:in `default_render'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/implicit_render.rb:5:in `send_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/abstract_controller/base.rb:198:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/rendering.rb:10:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/abstract_controller/callbacks.rb:20:in `block in process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:117:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:117:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in `block in halting'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:234:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:234:in `block in halting'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in `block in halting'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:92:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:92:in `_run_callbacks'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:81:in `run_callbacks'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/abstract_controller/callbacks.rb:19:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/rescue.rb:29:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:in `block in instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:in `instrument'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/abstract_controller/base.rb:137:in `process'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionview-4.2.0/lib/action_view/rendering.rb:30:in `process'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal.rb:195:in `dispatch'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_controller/metal.rb:236:in `block in action'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:73:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:42:in `serve'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/journey/router.rb:43:in `block in serve'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/journey/router.rb:30:in `each'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/journey/router.rb:30:in `serve'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:802:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:186:in `call!'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:164:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/bullet-4.14.4/lib/bullet/rack.rb:12:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/warden-1.2.3/lib/warden/manager.rb:35:in `block in call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/warden-1.2.3/lib/warden/manager.rb:34:in `catch'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/warden-1.2.3/lib/warden/manager.rb:34:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@balig
App 8203 stdout: am/gems/rack-1.6.0/lib/rack/etag.rb:24:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/conditionalget.rb:25:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/head.rb:13:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/flash.rb:260:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/session/abstract/id.rb:225:in `context'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/session/abstract/id.rb:220:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/cookies.rb:560:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/query_cache.rb:36:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activerecord-4.2.0/lib/active_record/migration.rb:378:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:88:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:88:in `_run_callbacks'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:81:in `run_callbacks'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/reloader.rb:73:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/better_errors-2.1.1/lib/better_errors/middleware.rb:84:in `protected_app_call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/better_errors-2.1.1/lib/better_errors/middleware.rb:79:in `better_errors_call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/better_errors-2.1.1/lib/better_errors/middleware.rb:57:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/railties-4.2.0/lib/rails/rack/logger.rb:38:in `call_app'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/railties-4.2.0/lib/rails/rack/logger.rb:20:in `block in call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/tagged_logging.rb:68:in `block in tagged'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/tagged_logging.rb:26:in `tagged'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/tagged_logging.rb:68:in `tagged'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/railties-4.2.0/lib/rails/rack/logger.rb:20:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/quiet_assets-1.1.0/lib/quiet_assets.rb:27:in `call_with_quiet_assets'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/request_id.rb:21:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/methodoverride.rb:22:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/runtime.rb:18:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/activesupport-4.2.0/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/lock.rb:17:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/actionpack-4.2.0/lib/action_dispatch/middleware/static.rb:113:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/rack-1.6.0/lib/rack/sendfile.rb:113:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/railties-4.2.0/lib/rails/engine.rb:518:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/railties-4.2.0/lib/rails/application.rb:164:in `call'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/passenger-4.0.58/lib/phusion_passenger/rack/thread_handler_extension.rb:74:in `process_request'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/passenger-4.0.58/lib/phusion_passenger/request_handler/thread_handler.rb:141:in `accept_and_process_next_request'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/passenger-4.0.58/lib/phusion_passenger/request_handler/thread_handler.rb:109:in `main_loop'
App 8203 stdout:    /home/gshilin/.rvm/gems/ruby-2.2.0@baligam/gems/passenger-4.0.58/lib/phusion_passenger/request_handler.rb:455:in `block (3 levels) in start_threads'
App 8203 stdout: 
App 8203 stdout: 
App 8203 stdout: [101, 110] in /home/gshilin/projects/baligam4/app/views/shop/admin/products/_form.html.slim
App 8203 stdout: 
App 8203 stdout:    101:         = f.simple_fields_for :product_images do |images|
App 8203 stdout:    102:           .row
App 8203 stdout:    103:             .col-md-1 = images.input :position, input_html: {class: 'col-md-1'}, label: false
App 8203 stdout:    104:             .col-md-1 = images.input :no_zoom, input_html: {class: 'col-md-2'}, label: false
App 8203 stdout:    105:             .col-md-3 = images.input :image, input_html: {class: 'col-md-12'}, label: false, :as => :file
App 8203 stdout: => 106:             .col-md-3 = images.object && images.object.image? ? image_tag(images.object.image.normal.url) : ' '.html_safe
App 8203 stdout:    107:             .col-md-2 = images.link_to_remove 'remove', class: 'red'
App 8203 stdout:    108:         = f.link_to_add 'Add an image', :product_images
App 8203 stdout:    109:     .clr
App 8203 stdout:    110:     = f.label 'Product Properties'
App 8203 stdout: (byebug)