The game progress didn't "save" for me. It still says I have a lifetime earning of 3 Halloween Spirits. So it recognizes that I earned those, but all progress and the spirits are lost.
I'm trying to advance from the Medieval Era. I've bout the Xystus Chapel & every upgrade up to this point but I can't click the "advance era" button. Is this a bug, or am I missing something?
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Try Refreshing the page. This seems to be working for most people.