So I'm running lovebot again, against Callidus, while making it's way through the F1 league... not sure if sexrepro caused it, wasn't realy during the orgy, but I'm not sure it was completely done reproducing with everyone. I would still suspect it's caused by sexrepro though, still took a long time for it to happen though, so the error is far from frequent.
Not sure if it's related, but the error came just as I was pushing the autowin button.
Also it seems like autowin awards 2 wins and not just one. Not sure if it always does, but I've definately seen it happen fairly often.