Tilles error MYSQL

[PandemonBR]

I have the error in msyql every time it reloads the server goes into maintenance, or every time you reboot it does not close and it does appear a lot of error so

TILES Cannot add or update a parent row: a foreign key constraint fails MYSQL
tiles and my table is using this

DROP TABLE IF EXISTS tiles;
CREATE TABLE tiles
(
id INT UNSIGNED NOT NULL,
world_id TINYINT(4) UNSIGNED NOT NULL DEFAULT 0,
house_id INT UNSIGNED NOT NULL,
x INT(5) UNSIGNED NOT NULL,
y INT(5) UNSIGNED NOT NULL,
z TINYINT(2) UNSIGNED NOT NULL,
UNIQUE (id, world_id),
KEY (x, y, z),
FOREIGN KEY (house_id, world_id) REFERENCES houses(id, world_id) ON DELETE CASCADE
) ENGINE = InnoDB;