Did you check your circuit breakers? If stuff stops working when you move to 120 volt that was working on 12 volt dc, that's probably the first place to look. If things aren't getting power after that check, there's something up with your converter. You can replace them pretty easy / not expensive. Good luck... I'm sure others will have better advise.
2016 27BHS Elite
2012 F-150 EcoBoost / Max Tow