Fatal error: Uncaught Error: Call to undefined function add_action() in /home/wemmbca/public_html/wp-content/plugins/ultimate-blocks/src/blocks/advanced-heading/block.php:29 Stack trace: #0 {main} thrown in /home/wemmbca/public_html/wp-content/plugins/ultimate-blocks/src/blocks/advanced-heading/block.php on line 29