Sometimes ModSecurity rules have undesired effects and they must be disabled.
When using ModSecurity Vendors, the existing rules cannot be edited, but they can be disabled. To do so, first login to WHM, then Navigate to the "Home >> Security Center >> ModSecurity Tools" page.
From there you will need to access the Hits List:
From the Hits List page click the "pencil" icon next to the rule you want to disable. You can then deselect the check mark next to "Enable Rule"