Warning: include_once(C:\inetpub\ritsubi_jp/app_config.php): Failed to open stream: No such file or directory in C:\inetpub\ritsubi_jp\libs\head.php on line 2

Warning: include_once(): Failed opening 'C:\inetpub\ritsubi_jp/app_config.php' for inclusion (include_path='.;C:\php\pear') in C:\inetpub\ritsubi_jp\libs\head.php on line 2

Fatal error: Uncaught Error: Undefined constant "APP_PATH" in C:\inetpub\ritsubi_jp\libs\head.php:3 Stack trace: #0 C:\inetpub\ritsubi_jp\guide\index.php(4): include() #1 {main} thrown in C:\inetpub\ritsubi_jp\libs\head.php on line 3