Fatal error: Uncaught Error: Undefined constant "SITE_NAME" in /var/www/vhosts/mestrogaming.net/airline.mestrogaming.net/core/lang/en.lang.php:31 Stack trace: #0 /var/www/vhosts/mestrogaming.net/airline.mestrogaming.net/core/classes/Lang.class.php(55): include() #1 /var/www/vhosts/mestrogaming.net/airline.mestrogaming.net/core/codon.config.php(68): Lang::set_language() #2 /var/www/vhosts/mestrogaming.net/airline.mestrogaming.net/index.php(40): include('...') #3 {main} thrown in /var/www/vhosts/mestrogaming.net/airline.mestrogaming.net/core/lang/en.lang.php on line 31