I bet its stuck or needs reset. I have fixed several over the yrs that my mother in law breaks or sticks. She crams everything down them. Really it's easier to just throw garbage in the garbage but noooo she like putting egg shells, potato skins, meat, etc etc in them. It's weird .
They also rust together but you can take it out and break it free and oil it
They also rust together but you can take it out and break it free and oil it