Fatal error: Uncaught mysqli_sql_exception: Unknown column 'vehicle_name' in 'SELECT' in /home/mekinazw/public_html/region.php:20 Stack trace: #0 /home/mekinazw/public_html/region.php(20): mysqli->query('SELECT DISTINCT...') #1 /home/mekinazw/public_html/region.php(436): getUniqueValues(Object(mysqli), 'vehicle_name') #2 {main} thrown in /home/mekinazw/public_html/region.php on line 20