White page error

[yeknafar]

Hello

When I reboot the server (CWP) or want to install mod security I see a white page and nothing more and I have to open a new page by going to the address of my panel.

How can I solve it?

Thanks for your attention.

[rqami.com]

please run this command after install mod security
tail -f /usr/local/cwpsrv/logs/error_log
and print error show it here