I came out today due to power loss at a receptacle located in the master bathroom right of the sink. I pulled the device out and it had (1) cable assembly 12/2 stabbed into the back of the device and I found another cut of wire in the back of the box. I checked the other bathrooms and they are on a separate circuit with the GFCI device located in the powder room controlling the upstairs hall bathroom. I went to the panel and found a 20 amp GFCI breaker in the off position and after resetting the breaker power was restored. I took a hair dryer and applied a load onto the circuit in the master bathroom and did not get the breaker to trip. The panel has many issues going on inside. The cover is a type GE, the main breaker and panel board is ITE (Siemens) and all breakers don’t match the manufacturer along with the cover. I found that the right buss has had significant heat on the buss bar and I used a thermal imaging camera and found no overheating while on site. An S/O cord is coming up