Error adding FK, urgent help needed.

[thiccboygamerTTV]

Error in SQL query: ALTER TABLE `subeler` ADD FOREIGN KEY ( `sube_id` ) REFERENCES `htimurat_pilot`.`urunler` ( `urun_sube` ) ON DELETE RESTRICT ON UPDATE RESTRICT ; MySQL output: Error #1215 - Cannot add foreign key constraint I am trying to link the 'sube_id' in the 'subeler' table with 'urun_sube' in the 'urunler' table as a foreign key but encountering the above error. What could be the issue?