Fatal error: Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`lghcsfbu_money_manager`.`sales`, CONSTRAINT `sales_ibfk_1` FOREIGN KEY (`product_id`) REFERENCES `products` (`id`)) in /home/lghcsfbu/public_html/products.php:77 Stack trace: #0 /home/lghcsfbu/public_html/products.php(77): PDOStatement->execute() #1 {main} thrown in /home/lghcsfbu/public_html/products.php on line 77