Thanks for the suggestion, LexManos. I ran tests by removing all those mods and then adding them back one-at-a-time. It seems that FoamFix might be the issue, since it happened again when I added it back. But then, when I ran again with FoamFix, it ran fine and now I ran it a few times and no crash. This is strange. I will keep an eye on it and if it happens again, I will remove FoamFix and try running without it for awhile to see if it happens again.