How to increase this for WordPress websites?

Time:         Fri Oct 13 22:30:14 2023 +0200
Account:      tmfcf
Resource:     RSS Memory Size
Exceeded:     264 > 256 (MB)
Executable:   /usr/local/bin/php-cgi
Command Line: /usr/local/bin/php-cgi /home/tmfcf/xxx.xxxxx.com/index.php
PID:          11049 (Parent PID:21965)
Killed:       No

What is your server's memory allocation? Is this under Apache or Nginx? I usually bump up the memory allocation of PHP FPM versions to 256MB (from the default 128MB). Many of my WordPress clients are running just fine with that allocation. Only a Magento install on a dedicated server and a Drupal install got 512MB allocations.

Time:         Fri Oct 13 22:30:14 2023 +0200
Account:      tmfcf
Resource:     RSS Memory Size
Exceeded:     264 > 256 (MB)
Executable:   /usr/local/bin/php-cgi
Command Line: /usr/local/bin/php-cgi /home/tmfcf/xxx.xxxxx.com/index.php
PID:          11049 (Parent PID:21965)
Killed:       No

Afaik, it's php memory, You can just increase it on php.ini as well as on php-cli

Actually it was increased in php.ini weeks ago as well as the php.ini in the CWP user panel under the domain name and that did not do it. I did fix it but I had to increase virtual memory and RSS memory in CSF. Thanks for all your guys's help I appreciate it.