Fatal error: Uncaught Error: Undefined constant "_APP_DIR_" in /home/users/zadania-ksef/config/config.inc.php:13 Stack trace: #0 /home/users/zadania-ksef/public_html/api/index.php(19): require_once() #1 {main} thrown in /home/users/zadania-ksef/config/config.inc.php on line 13