i tried restoring my site to a version from August via Jetpack and I am getting a fatal error message leading to the Pro theme.
An error of type E_COMPILE_ERROR was caused in line 8 of the file /srv/htdocs/wp-content/themes/pro/cornerstone/includes/classes/classic/utility/class-shortcode-preserver.php. Error message: Cannot declare class Cornerstone_Shortcode_Preserver, because the name is already in use
Any help?