I have this problem ... I can not access the control panel ... however the rest of the server does work ... apache, ftp server and mail
# systemctl status cwpsrv.service -l
● cwpsrv.service - CentOS Web Panel service (daemon)
Loaded: loaded (/usr/lib/systemd/system/cwpsrv.service; enabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Mon 2018-12-03 09:35:30 UTC; 458ms ago
Process: 5280 ExecStartPre=/usr/local/cwpsrv/bin/cwpsrv -t (code=exited, status=1/FAILURE)