Can’t Fetch Perl Modules
in your WHM at “Main >> Software >> Install a Perl Module >> Show Available Perl Module(s) ”
In most cases Low memory to process cPanel processes.
You can check the exact logs at :: /usr/local/cpanel/logs/error_log
Increasing cPanel Process memory, to increase this memory follow the tab in your WHM like “Server Configuration >> Tweak Settings”, under the “System” tab, increase the following value:
“Max cPanel process memory”
Hope this will help