Fatal error: Uncaught Error: Class 'WP_Block_Supports' not found in /home/agreenvic/mfadv.org/wp-includes/block-supports/custom-classname.php:59
Stack trace:
#0 {main}
thrown in /home/agreenvic/mfadv.org/wp-includes/block-supports/custom-classname.php on line 59