Warning: Undefined variable $conn in /var/www/html/wordpress6/wordpress/EP/event-header.php on line 17

Fatal error: Uncaught TypeError: mysqli_real_escape_string(): Argument #1 ($mysql) must be of type mysqli, null given in /var/www/html/wordpress6/wordpress/EP/event-header.php:17 Stack trace: #0 /var/www/html/wordpress6/wordpress/EP/event-header.php(17): mysqli_real_escape_string() #1 {main} thrown in /var/www/html/wordpress6/wordpress/EP/event-header.php on line 17