It appears the latest update to cornerstone is causing chaos on my site. I was 100% fine yesterday with my edits & such. I took the day off today to work on the site & it appears the latest update just isn’t working for me.
After updating I found that cornerstone was causing a server error 500. After diving into the error logs, I am finding several lines of the following:
[01-Jun-2018 16:31:40 UTC] PHP Warning: require_once(removed path): failed to open stream: Permission denied in /websitepath/plugins/cornerstone/includes/cornerstone-plugin.php on line 105
[01-Jun-2018 16:31:40 UTC] PHP Fatal error: require_once(): Failed opening required ‘website path/plugins/cornerstone/includes/classes/styling/class-font-manager.php’ (include_path=’.:/opt/cpanel/ea-php56/root/usr/share/pear’) in /website path/plugins/cornerstone/includes/cornerstone-plugin.php on line 105
When I rename my plugins folder & visit wp-admin/plugins.php, I am able to disable the plugins & get back on the site. As soon as I enable cornerstone & make any attempt at an edit, the site crashes once again.