Mtheo8

Hi guy sorry to bother you I had a question in fact yesterday around 11 pm I had a problem on the pokémon game in gold version, I exchanged my Haunter level 39 approximately to an NPC without deliberately doing to Johto on "Ecruteak City" for his xatu, then I caught up with a Gasly but the problem is that it's too long the time it took me to mount it level 39, is there a way to recover it please?