Warning: Undefined variable $conn in /home/umojambele/public_html/includes/configuration.php on line 6

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /home/umojambele/public_html/includes/configuration.php:6 Stack trace: #0 /home/umojambele/public_html/includes/configuration.php(6): mysqli_query(NULL, 'SELECT * FROM s...') #1 /home/umojambele/public_html/pages.php(4): include('/home/umojambel...') #2 {main} thrown in /home/umojambele/public_html/includes/configuration.php on line 6