Fatal error: Uncaught mysqli_sql_exception: Field 'SignUo' doesn't have a default value in /home/lofy/public_html/INFOST-440/assignment10/Xtra/Add.php:9 Stack trace: #0 /home/lofy/public_html/INFOST-440/assignment10/Xtra/Add.php(9): mysqli_query(Object(mysqli), 'INSERT INTO `us...') #1 {main} thrown in /home/lofy/public_html/INFOST-440/assignment10/Xtra/Add.php on line 9