Fatal error: Uncaught Error: Call to undefined function ExtendBuilder\add_action() in /var/www/virtual/radiotalkabout.it/htdocs/wp-content/plugins/colibri-page-builder/extend-builder/api/api.php:65 Stack trace: #0 /var/www/virtual/radiotalkabout.it/htdocs/wp-content/plugins/colibri-page-builder/extend-builder/api/api.php(16): ExtendBuilder\Api->extendBuilderApi() #1 /var/www/virtual/radiotalkabout.it/htdocs/wp-content/plugins/colibri-page-builder/extend-builder/api/api.php(72): ExtendBuilder\Api->__construct() #2 /var/www/virtual/radiotalkabout.it/htdocs/wp-content/plugins/colibri-page-builder/extend-builder/api/index.php(5): require_once('/var/www/virtua...') #3 {main} thrown in /var/www/virtual/radiotalkabout.it/htdocs/wp-content/plugins/colibri-page-builder/extend-builder/api/api.php on line 65