pkhex won't looad my japanese crystal save

[Servia]

I have been playing some pokemon games in japanese on emulator. The emulator I have been using is mGBA. Every time I try to import my japanese crystal save data into pkhex I keep getting this error:

I don't know why it's giving me this error. I assume it has something to do with the file size or region differences because it will accept an english sav just fine. I would appreciate any help on this issue.

Pocket Monsters - Crystal Version (J) [C][!].sav