Error unsupported visualboyadvance save game version 0. Can no longer load a save state.

So I’ve been playing the Japanese version of Pokemon Emerald and finished the main game tonight and saved at the battle frontier. I made a normal save and not also made a save state (not sure if it was in the exact same place but it was fairly close to my actual save). However, the normal save seem to be gone as there is no longer any save on that file and the save state gives me the follow message “unsupported visualboyadvance save game version 0” and I can’t open it. Is there any way to...

Error unsupported visualboyadvance save game version 0. Can no longer load a save state.