i3: i3bar can't start after i3wm restart

Output of i3 --moreversion 2>&- || i3 --version:

Binary i3 version: 4.12 (2016-03-06, branch “4.12”) © 2009 Michael Stapelberg and contributors Running i3 version: 4.12 (2016-03-06, branch “4.12”) (pid 743) Loaded i3 config: /home/kusayu/.config/i3/config (Last modified: Sun 10 Jul 2016 10:45:41 PM NOVT, 1172 seconds ago)

The i3 binary you just called: /usr/bin/i3 The i3 binary you are running: i3

URL to a logfile as per http://i3wm.org/docs/debugging.html: http://logs.i3wm.org/logs/5762957321437184.bz2

URL to i3bar log: http://pastebin.com/vxR5d9b8

What I did:

Start i3, restart x-server twice (with Ctrl+Alt+Backspace).

What I saw:

from this moment i3bar disappeared and don’t work until reboot no matter how much I restart i3wm, even though i can run i3bar with ‘i3bar --bar_id bar-0’