Hepatitisa

Is there no way to learn recover?

Hey I tried trading my Haunter to evolve it to a Gengar and forgot that that Gastly was originally from Kanto. I traded with Yozplaa and he does not have the Rising Badge yet so the Haunter got region locked. I asked in Discord and was sent here, I would greatly appreciate if you could help me out with this :) Sorry for the imgur link but the attachment didn't work for the other 2 fotos :/ additional pictures for evidence -> ( https://imgur.com/a/qIZSkAo ) PS: the OT is a different person because i bought that gastly back in kanto