You may need to make minor adjustments to your server’s overall PHP settings. In order to make such changes you can use the PHP Configuration Editor within WHM to accomplish such a task. To get started click or search for the Service Configuration.
Then click the ‘PHP Configuration Editor’ button.
Some of the common edits that are made here are to the memory_limit and upload_max_filesize.
Click on Advanced Mode to find more options like display_errors, error_reporting, open_basedir, and many other settings.