Need help with a specific pokemon

[Wxst3Full]

I need help with the hidden trainer on a mewtwo on my pokemon y save file. Despite it having my actual OT, TID and SID and the actual real location that you could catch it in it still adds the Handling trainer. It just tells me the following once I remove the specific Handling Trainer “Invalid: GeoLocation Memory: HT Name present but has no previous country.” Man all I want is for the mewtwo to be in my name

Edited 14 hours ago by Wxst3Full