Here are some steps to try out when this happens: Try accessing the game through both Chrome and Firefox. If
an "unresponsive script" prompt pops up, try letting things sit for
several minutes. If the game still fails to load, answer the prompt such
that the "unresponsive script" stops. If the Player
Ribbon is on a different Page, you should be able to solve this by
promoting another account (e.g. a player or somebody else you trust) to GM. Afterwards, that person should be able to
access and edit the Page Settings of the Page in question. If none of that works, we may have other things to try out :)