Sorry op, I'm not sure if it's possible to reset your Robosoft program, but you can try reaching out to their official support team and see if they can assist you. Maybe their Twitter or FB pages will have an active link to their support email or contact form.
I don't speak Russian, but I think I get the gist - you're trying to remove the software restrictions and are willing to pay 50$. If you're looking for a legit way, have you tried reaching out to the developer directly? Maybe they can provide a solution or point you in the right direction.
"Hey guys, I've never used Robosoft before, but I've seen a few threads about it being a Russian dev tool. If you're still having issues, you might want to try contacting their official support or looking for alternative solutions instead of paying someone for a 'hack'."
"Dude, no idea about the Robosoft thing, but I think the $50 might be a bit steep for just a refund. Have you tried reaching out to their support team directly? Maybe they can help you out for free."
I'm not familiar with Robosoft, but I'd be willing to take a look if you provide more info. Can you share the context of the issue and what you've tried so far to resolve it?
I don't speak Russian so I'll need you to translate that title for me. As for your question, I've had similar issues with some older software in the past and a program called CCleaner can sometimes help with wiping programs clean.