I haven't tried installing a pkg with goldhen yet, but I've never seen that error before. check if the app.pkg is on the system. it should be in user/app from what I remember, unless it's on the external hdd via extended storage; then, there's no way to locate it. also, check in the app.db on system_data/priv/mms. sort by game name might be the easiest way to find it if it's even in there.