fender blues junior tubes

Fender Blue Junior Problem!?!?
i have a fender blues junior and lately it just buzzes and stuff and i got it working and then someone slammed a door and my house and its buzzing really bad again its a tube amp can someone help me?
replace the cord or make sure the tubes are in good.
D*A*M Fuzz Sound / Fulltone TTE Tube Tape Echo / Fender Blues Junior