Fatal error: Uncaught mysqli_sql_exception: Unknown column 'img' in 'where clause' in /var/www/html/database.php:58 Stack trace: #0 /var/www/html/database.php(58): mysqli_query(Object(mysqli), 'SELECT * FROM c...') #1 /var/www/html/database.php(93): mysql->query('SELECT * FROM c...', false) #2 /var/www/html/comp.php(32): mysql->fetch_all('SELECT * FROM c...') #3 {main} thrown in /var/www/html/database.php on line 58