I also can't upgrade my village even though I have the money. My screen flickers then nothing happens. My screen froze when I wanted to buy supplies from my village.
P.S. Don't make farms, limber yards, and quarries/salt mines colored. It makes them so hard to distinguish.
(Edit) My game crashed when I tried upgrading my fire witch to and advanced witch. Also attacking towns is impossible because of the AI it can't walk it just gets stuck so you have to enter and fight like 300 people by yourself.
Yellowdragonfire
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