Habe mir GX 3 installiert konnte aber nicht aktivieren. Fehlermeldung

arning: require_once(/www/htdocs/w00d99cd/GXEngine/GXEngine_init.inc.php): failed to open stream: No such file or directory in /www/htdocs/w00d99cd/system/gngp_layer_init.inc.php on line 12

Fatal error: require_once(): Failed opening required '/www/htdocs/w00d99cd/GXEngine/GXEngine_init.inc.php' (include_path='.:/usr/share/php:..') in /www/htdocs/w00d99cd/system/gngp_layer_init.inc.php on line 12

Bitte um eure Hilfe