The item, which you want to buy, doesn't exist

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    First I have to manage that I use polish version, so I have no idea how tranlations look in english version.

    Well, week ago I came back on our server. Ofc I started to grind avatars. And then the problem appeared. Usually when I want to buy a part of avatar I receive notification "The item, which you want to buy, doesn't exist", even when I restart the whole game. The question is: is there any solution for this problem? Or is it a bug?