Melmetal “ Current handler cannot be past Gen OT for transferred specimen.”

[Jarod09942]

I have a melmetal from Pokémon go. I have this error on my Pokémon sword save on PkHex,so how do I change this error message? Thanks.

[theSLAYER]

The error explains the issues to you. Maybe I shall attempt to rephrase it:
For a transferred Pokémon, it is unlikely that the OT details of said transferred mon, be the same as the OT details of the save it is in.