Have you tried checking Hostess club/Coffee shop?
(Depends on the path you choose)
Because the bug you just described - doesn't exist.
(Or it haven't been found yet - but chances of that being true pretty slim at best.)
If you have itch.io account - https://itch.io/my-purchases
If not - After purchasing the game, you should have a receipt on your email, it contains a permanent link to download the game.
If you don't have access to that email for some reason, try making a refund through Itch.io support.
I would really like to ask if there will be a Russian language in this game
It will be, but when? that's a whole another topic.
Translations are created by the community, translating the game into different languages.
As for the Russian language? It's going extremely slowly, just a few individuals are working on it.
Firstly, I'm not a dev.
Secondly, did you just called me weird? while you're the one who have problem with prices evaluation? I simply pointed that out.
I was a little disappointed with the lack of content for $10.
Other people have tried to tell you that, and they've shown you that... very... very clearly.