Fatal error: Uncaught Error: Undefined constant "Config\APPPATH" in /opt/bitnami/apache/htdocs/stage/app/Config/Database.php:15 Stack trace: #0 /opt/bitnami/apache/htdocs/stage/debug_final.php(9): [constant expression]() #1 {main} thrown in /opt/bitnami/apache/htdocs/stage/app/Config/Database.php on line 15