Hello my lord , there isn't a bug for this issue , but...never say never !

Please try to clean all the cache and log in the game with different browser ,let's see if that help !

Thank you for your patience and i wish you good battles !

The platform:  Stormfall: Age of War  -  web app

The server: - Farwol's Crown

The feature that causes the issue:  any time I try to purchase anything (bank, black market, etc...)

The exact steps you performed before the bug arose;  I select an item or package to purcahse, it takes me to the purchase page.  I click on the button to complete the purchase.  The screen goes gray and black and freezes.  I have to close the game and reopen and no purchase is made.