Fuel Gauge shows empty with full tank of gas

I have a 2020 Prius Prime and filled up my gas tank a couple days ago. It rained overnight while I charged the car and this morning, I turned on the car forgetting to unplug the charger. It gave me a warning and so I unplugged it and then noticed the low fuel light was on. When I turned on the car ready to drive, I noticed the fuel indicator had no bars. Totally empty. I thought maybe there was a fuel leak? I took the car to the gas station to fill it up but it only took in .2 gallons before it was full.

The car drives fine, but the fuel gauge is now broken. I have had rats get into my engine bay so was worried maybe they chewed on some wires? But I don't have any other lights or anything wrong with the car. Anyone else experienced this problem?