What is going on with my heating/AC furnace?

[FictionalCharacter]

There was a blizzard here for the past days. That I’ve been having the heater running, till I smelled like something was burning.

I checked it out the furnace right now.

What is going on?

This is frozen and a burnt ceiling

[Baylist1000]

It's overheating. It will good to get it checked and fixed by a professional