Database connection: OK ip_events table: EXISTS Total events: 3 Active events: 3 Sample event: ID=3, Title=Kerstwandeling Shibaawalk 2.0 ip_event_registrations table: EXISTS Table columns: - registration_id (int(11)) - event_id (int(11)) - first_name (varchar(100)) - last_name (varchar(100)) - email (varchar(255)) - phone (varchar(20)) - registration_date (timestamp) - status (enum('pending','confirmed','cancelled')) - confirmation_code (varchar(50)) - notes (text) - dog_name (varchar(255)) - dog_breed (varchar(255)) - remarks (text)Testing insert... Test insert: FAILED - Cannot add or update a child row: a foreign key constraint fails (`shir_shop`.`ip_event_registrations`, CONSTRAINT `fk_event_registrations_event_id` FOREIGN KEY (`event_id`) REFERENCES `ip_events` (`event_id`) ON DELETE CASCADE ON UPDATE CASCADE)