Runtime Error when saving

[Noob Player]

Yo~

I have not been using PPSSPP for long, but I've got a problem. xD
I'm playing Disgaea 2 and sometimes when I'm trying to save via quicksave, PPSSPP crashes with a runtime error...
When I power it back up, it tells me the save state cannot be loaded, because it belongs to an older PPSSPP version... which is impossible, since I've only installed and used one version. û__u

What's the problem? I don't get it.
I wonder if maybe that runtime didn't install properly and that's why it errors so often... unfortunately I can't seem to download it off that download site, so hm...

It's especially annoying since this is a game where you save often and I really prefer savestates to regular saving (faster and more convenient).
So I keep having to play stages several times until I can finally save properly. XD Grr!!!