Fatal error: Uncaught Error: Call to undefined function add_action() in /home/antenaserwis/public_html/satserwis/wp-content/plugins/custom-css-and-javascript/custom-css-and-javascript.php:32 Stack trace: #0 {main} thrown in /home/antenaserwis/public_html/satserwis/wp-content/plugins/custom-css-and-javascript/custom-css-and-javascript.php on line 32