Question
Where can I view the cPanel & WHM error logs?
Answer
The error logs for both the cPanel and WHM interfaces can be viewed at this file:
/usr/local/cpanel/logs/error_log
If you can consistently reproduce the problem in the interface you can run this command to watch the log file update in real time, which may help you track down the source of the error:
tail -f /usr/local/cpanel/logs/error_log