if( !$video_url ){
                        echo json_encode(array(
                            'resp'  =>  'error',
                            'message'   =>  __('Video Link is required','mars'),
                            'element_id'    =>  'video_url'
                        ));exit;
                    }

                    if( strpos( $video_url , 'list=') === true ){
                        echo json_encode(array(
                            'resp'  =>  'error',
                            'message'   =>  __('Please enter a single video, not a playlist','mars'),
                            'element_id'    =>  'video_url'
                        ));exit;
                    }