An unexpected error occurred. Something may be wrong with www.remarpro.com or this

I am using the latest version and i am facing issues from the past 3 days.

My site is slow and i created a ticket and i got reply from my host that there is some problem.

[Sat Jan 16 08:15:29 2016] [warn] [client 162.158.x.x] mod_fcgid: can’t apply process slot for /usr/local/cpanel/cgi-sys/php-fcgi, referer: https://aimforbig.com/
[Sat Jan 16 08:24:26 2016] [warn] [client 162.158.x.x] mod_fcgid: can’t apply process slot for /usr/local/cpanel/cgi-sys/php-fcgi, referer: https://aimforbig.com/customid
[Sat Jan 16 08:24:41 2016] [warn] [client 162.158.x.x] mod_fcgid: can’t apply process slot for /usr/local/cpanel/cgi-sys/php-fcgi, referer: https://aimforbig.com/customid
[Sat Jan 16 08:26:03 2016] [warn] [client 162.158.51.251] mod_fcgid: can’t apply process slot for /usr/local/cpanel/cgi-sys/php-fcgi, referer: https://aimforbig.com/customid
[Sat Jan 16 15:02:17 2016] [warn] [client 162.158.51.251] mod_fcgid: can’t apply process slot for /usr/local/cpanel/cgi-sys/php-fcgi, referer: https://aimforbig.com/
++

2016-01-16 15:12:52 +0000 [info] killed_thread_id:52508262 user:aimforxxx host:localhost db:aimforxxxx command:Sleep time:24 query:
2016-01-16 15:14:02 +0000 [info] killed_thread_id:52508710 user:aimforbxxx host:localhost db:aimfornxxxx command:Sleep time:23 query:

This is the error they posted there.

Immediately after his reply i repaired my sql database and before that i checked my log and there was none. I repaired my sql database and then i went back to my wordpress dashboard and disabled few plugins that i am not using.

There are 522, 520 error and some other errors so i paused cloudflare for a while and checked but i am getting these errors again and again.

I tried to install a plugin which can repair my database but when i tried to access add new plugin it will wither show the error 520 or it will show like this from my dashboard “An unexpected error occurred. Something may be wrong with www.remarpro.com or this server’s configuration. If you continue to have problems, please try the support forums.
Try again” .

Any one know how to fix this issue? I will post the screenshots of resource manager and i checked it it looks fine to me.