Dragon Age: Origins Save Editor?

Hey guys, I’m new to Horizon and wanted to ask and see if anyone knew about some good Dragon Age Save Editors for Attributes, and what not. I’ve tried two but they just don’t seem to ever work out. There’s one on Horizon that worked once and now I can’t use it anymore. I keep getting a arithmetic application overflow and there’s no tutorial to fix it on windows 8. Can anyone help me? The save editor I’m using is called FirstBlight, If you can help me fix it or find a new one I’d be grateful.