Fatal error: Uncaught mysqli_sql_exception: Duplicate entry 'tshirt' for key 'printier.category_2' in /var/www/ishopping.dk/public_html/index.php:89 Stack trace: #0 /var/www/ishopping.dk/public_html/index.php(89): mysqli_query(Object(mysqli), ' UPDATE printie...') #1 {main} thrown in /var/www/ishopping.dk/public_html/index.php on line 89