Hi!
If I use the “Regenerate Critical CSS” Button on Extension/Rocket/WP Rocket page ( /wp-admin/admin.php?page=Extensions-Mainwp-Rocket-Extension&_perform_action=mainwp_rocket_generate_critical_css&_wpnonce=3ae9b49663#wp-rocket ) the following error occurs:
Missing classes: \WP_Rocket\Subscriber\Optimization\Critical_CSS_Subscriber,\WP_Rocket\Optimization\CSS\Critical_CSS,\WP_Rocket\Optimization\CSS\Critical_CSS_Generation
Hope you can help!
Regards
D.