Upgraded to 5.28.3 in WP - how to fix crash?
This isn't really a WP error, it's a file that's either missing or has the wrong owner/permissions.
Look for /home/fovps1e/public_html/wp-content/plugins/civicrm/includes/civicrm.compat.php.  Is it present?  If not, you may need to unzip another copy of WordPress.  More likely, it's present, but its file ownership/permissions make it unreadable by whichever user is your PHP user.