Facebook servers are offline right now and many parts of the software will seemingly fail to load. You can still use VD/Air Link however. But if you want to play local offline games, you should disconnect it from wifi. By having it connected to the internet, it believes it should be connecting to FB servers to load/sync shit, that's why it seems like the device depends on an internet connection, but that is not the case. Disconnecting the internet will let it assume that it should not be trying to communicate with FB servers, so things will load.