Fatal error: Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`u166789058_trading_POS`.`purchases`, CONSTRAINT `fk_purchases_suppliers_supplier_id` FOREIGN KEY (`supplier_id`) REFERENCES `suppliers` (`sup_id`) ON UPDATE CASCADE) in /home/u166789058/domains/encodinginnovations.tech/public_html/inventory/functions.php:127 Stack trace: #0 /home/u166789058/domains/encodinginnovations.tech/public_html/inventory/functions.php(127): PDOStatement->execute() #1 /home/u166789058/domains/encodinginnovations.tech/public_html/inventory/actions/suppliers/delete.php(14): deleteSupplier() #2 {main} thrown in /home/u166789058/domains/encodinginnovations.tech/public_html/inventory/functions.php on line 127