Fatal error: Uncaught mysqli_sql_exception: Duplicate entry 'william.clark@google.com' for key 'users.email' in /home/hbolembe/public_html/assignment7part5/insert.php:14 Stack trace: #0 /home/hbolembe/public_html/assignment7part5/insert.php(14): mysqli->query('INSERT INTO use...') #1 {main} thrown in /home/hbolembe/public_html/assignment7part5/insert.php on line 14