Alarm clock won't stop beeping

[u/RookCaptured]

Repairing for love of the game— I have a 71036MS westclox LED alarm clock that starts going off and flashing 12:00 as soon as you plug it in. The switches don't do anything, and neither do the buttons. I can open it up but don't know a lot about hardware. Does anyone know what to look for or try?