Fatal error: Uncaught Error: Call to undefined function add_action() in /home/nagorskakamila/public_html/knagbezp/wp-content/plugins/contact-form-7/admin/includes/config-validator.php:3 Stack trace: #0 {main} thrown in /home/nagorskakamila/public_html/knagbezp/wp-content/plugins/contact-form-7/admin/includes/config-validator.php on line 3