Fatal error: Uncaught ValueError: mb_http_input(): Argument #1 ($type) must be one of "G", "P", "C", "S", "I", or "L" in /var/www/include/config/setup_chat.php:11 Stack trace: #0 /var/www/include/config/setup_chat.php(11): mb_http_input() #1 /var/www/html/index.php(5): include_once('...') #2 {main} thrown in /var/www/include/config/setup_chat.php on line 11