For the last few times when I've played this game, whenever I try to buy something, the game crashes before I reach the shopping menu. I have edited the .ini files for some mods, and I have a feeling this may have caused this. I know it's not because of the mods themselves, because I've tried running the game with all mods disabled, and it will still crash at the shop menu. help would be much appreciated, thank you.

Have you tried dropping all your items and picking them back up again?

I found out what the problem was by trying to do that. My Riot Shotgun had somehow become corrupted so that every time I moused over it the game froze.