Fatal error: Uncaught Error: Call to undefined function add_action() in /home/sfeednon/public_html/wp-content/plugins/cmsmasters-content-composer/gutenberg/gutenberg.php:16 Stack trace: #0 /home/sfeednon/public_html/wp-content/plugins/cmsmasters-content-composer/gutenberg/gutenberg.php(184): Cmsmasters_Gutenberg->__construct() #1 {main} thrown in /home/sfeednon/public_html/wp-content/plugins/cmsmasters-content-composer/gutenberg/gutenberg.php on line 16