Warning: Undefined variable $pdo in /app/includes/frontend_header.php on line 5

Fatal error: Uncaught Error: Call to a member function query() on null in /app/includes/frontend_header.php:5 Stack trace: #0 /app/dmca.php(6): require_once() #1 /app/router.php(75): require('/app/dmca.php') #2 {main} thrown in /app/includes/frontend_header.php on line 5