Hi Leokhoa and who can help me.

I'm getting this trouble when accessing my sites virtual hosts with nginx server.

when I check the error.log, here it is:

2017/10/03 08:12:59 [notice] 5068#8840: signal process started
2017/10/03 08:14:08 [notice] 1760#6100: signal process started
2017/10/03 08:16:20 [notice] 11296#360: signal process started
2017/10/03 08:16:52 [notice] 16116#9708: signal process started
2017/10/03 08:20:43 [notice] 11368#2636: signal process started
2017/10/03 08:27:02 [notice] 9968#15208: signal process started
2017/10/03 08:31:28 [notice] 6316#6464: signal process started
2017/10/03 08:31:56 [notice] 7176#7328: signal process started
2017/10/03 08:37:07 [notice] 12096#14632: signal process started
2017/10/03 08:37:59 [notice] 15216#9692: signal process started

But when I'm using Apache Server. It's working just fine.

Thank You!