Warning: Undefined variable $conn in /www/wwwroot/bostonbrothers.bgssolution.com/includes/config.php on line 7

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /www/wwwroot/bostonbrothers.bgssolution.com/includes/config.php:7 Stack trace: #0 /www/wwwroot/bostonbrothers.bgssolution.com/includes/config.php(7): mysqli_query() #1 /www/wwwroot/bostonbrothers.bgssolution.com/index.php(12): include_once('...') #2 {main} thrown in /www/wwwroot/bostonbrothers.bgssolution.com/includes/config.php on line 7