My opinion is that you should try to make an honest living instead of trying to rob others. I don't think stealing is legal anywhere in the world either.

Apart from that others already mentioned that it is not possible to find a private key that was used before at random. The code is written in such a stupid way too which is why it can only check 26k keys/sec instead of something like 100 million key/sec which is understandable because a developer who has a better understanding of how to write code and understanding of basic cryptography knows making such a tool is a complete waste of time so only newbies with no understanding of anything do it...