jwt-auth: Invalid value provided for claim [iat]

Subject of the issue

I’m facing problem with IAT parameter on different servers. there is no possible way to understand Why this happens. Adding this info. May be someone will help me.

Your environment

Q	A
Bug?	yes
New Feature?	no
Framework	Lumen
Framework version	5.7.8
Package version	1.0.0-rc.4.1
PHP version	7.2.14

Steps to reproduce

periodical bug. Can’t tell steps to reproduce ( for now ).

Expected behaviour

new token is generated

Actual behaviour

Stack trace:
#0 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Claims/Claim.php(56): Tymon\JWTAuth\Claims\IssuedAt->validateCreate(1564121609)
#1 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Claims/DatetimeTrait.php(47): Tymon\JWTAuth\Claims\Claim->setValue(1564121609)
#2 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Claims/Claim.php(42): Tymon\JWTAuth\Claims\IssuedAt->setValue(1564121609)
#3 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Claims/Factory.php(79): Tymon\JWTAuth\Claims\Claim->__construct(1564121609)
#4 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Claims/Factory.php(110): Tymon\JWTAuth\Claims\Factory->get('iat', 1564121609)
#5 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Factory.php(147): Tymon\JWTAuth\Claims\Factory->make('iat')
#6 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Factory.php(173): Tymon\JWTAuth\Factory->buildClaims()
#7 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Factory.php(87): Tymon\JWTAuth\Factory->buildClaimsCollection()
#8 /var/www/collectors-api/vendor/tymon/jwt-auth/src/Manager.php(106): Tymon\JWTAuth\Factory->make()
#9 /var/www/collectors-api/vendor/tymon/jwt-auth/src/JWT.php(200): Tymon\JWTAuth\Manager->decode(Object(Tymon\JWTAuth\Token))
#10 /var/www/collectors-api/vendor/tymon/jwt-auth/src/JWT.php(210): Tymon\JWTAuth\JWT->getPayload()
#11 /var/www/collectors-api/vendor/tymon/jwt-auth/src/JWT.php(288): Tymon\JWTAuth\JWT->payload()
#12 /var/www/collectors-api/vendor/tymon/jwt-auth/src/JWTGuard.php(406): Tymon\JWTAuth\JWT->checkSubjectModel('App\\Models\\User...')
#13 /var/www/collectors-api/vendor/tymon/jwt-auth/src/JWTGuard.php(80): Tymon\JWTAuth\JWTGuard->validateSubject()
#14 /var/www/collectors-api/vendor/illuminate/auth/GuardHelpers.php(60): Tymon\JWTAuth\JWTGuard->user()
#15 /var/www/collectors-api/vendor/illuminate/auth/GuardHelpers.php(70): Tymon\JWTAuth\JWTGuard->check()
#16 /var/www/collectors-api/app/Http/Middleware/Authenticate.php(52): Tymon\JWTAuth\JWTGuard->guest()
#17 /var/www/collectors-api/vendor/illuminate/pipeline/Pipeline.php(163): App\Http\Middleware\Authenticate->handle(Object(Laravel\Lumen\Http\Request), Object(Closure))
#18 [internal function]: Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Laravel\Lumen\Http\Request))
#19 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Routing/Pipeline.php(32): call_user_func(Object(Closure), Object(Laravel\Lumen\Http\Request))
#20 /var/www/collectors-api/vendor/illuminate/pipeline/Pipeline.php(104): Laravel\Lumen\Routing\Pipeline->Laravel\Lumen\Routing\{closure}(Object(Laravel\Lumen\Http\Request))
#21 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php(415): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#22 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php(261): Laravel\Lumen\Application->sendThroughPipeline(Array, Object(Closure))
#23 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php(165): Laravel\Lumen\Application->handleFoundRoute(Array)
#24 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php(418): Laravel\Lumen\Application->Laravel\Lumen\Concerns\{closure}(Object(Laravel\Lumen\Http\Request))
#25 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php(171): Laravel\Lumen\Application->sendThroughPipeline(Array, Object(Closure))
#26 /var/www/collectors-api/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php(108): Laravel\Lumen\Application->dispatch(NULL)
#27 /var/www/collectors-api/public/index.php(28): Laravel\Lumen\Application->run()
#28 {main}```