Fatal error: Uncaught Error: Call to undefined function add_action() in /users/robiniffert95/www/gustavguns/wp-content/plugins/pelicula-core/inc/shortcodes/image-gallery/media-custom-fields.php:37 Stack trace: #0 {main} thrown in /users/robiniffert95/www/gustavguns/wp-content/plugins/pelicula-core/inc/shortcodes/image-gallery/media-custom-fields.php on line 37