Bugged interaction with Ms. Charm? Is it possible to fix?

I'm fairly midgame right now and I realized I had to talk to Ms Charm to progress the storyline with Snake, something I hadn't done before that point because I was too lazy to look up how to progress her story. When I talked to her I had a full inventory and she "gave" me coins. There are no coins in my inventory, and it won't let me ask her again, do I just delete the file and start again?