Ok goirish, I’m just trying to help.
If this engine was dropped at some point this also could have bent the crank.
The cranks bend very easy.
You might try “Zenoah” for a replacement part, many of these engine are just cheap knock offs of a more popular brand. I have no idea if any parts will interchange though.
BUT
I do have several 26cc engines, one of which is a Zenoah the other ones are of different brand names and most if not all of the parts are all interchangeable with each other.
I’m just trying to help get you in the air so you can enjoy this wonderful hobby.
You might also try tower hobbies, see if they offer an engine of the same size. If so there is a very good chance that it is the same engine.