Problem when starting apache server in plesk

Booting or restarting apache takes a lot and I get these errors.

Server version: Apache/2.4.6 (CentOS)


[Wed Aug 09 10:10:00.277620 2017] [fcgid:emerg] [pid 2069:tid 140608764823680] (22)Invalid argument: mod_fcgid: can't lock process table in PM, pid 2069
[Wed Aug 09 10:10:00.787006 2017] [fcgid:error] [pid 2900:tid 140608764823680] mod_fcgid: fcgid process manager died, restarting the server
[Wed Aug 09 10:10:00.803710 2017] [mpm_event:notice] [pid 2900:tid 140608764823680] AH00494:...

Problem when starting apache server in plesk