Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/almouadj/public_html/test/wp-includes/class-wp-embed.php:20 Stack trace: #0 /home/almouadj/public_html/test/wp-includes/class-wp-embed.php(334): WP_Embed->__construct() #1 {main} thrown in /home/almouadj/public_html/test/wp-includes/class-wp-embed.php on line 20