Nozzle temp too high. Will somebody please Help!

Hi Cetus enthusiasts.
My nozzle temp is stuck on 323 degrees. Even after the unit has been resting for an hour. Cetus Shut down mid print. Will not resume printing.
It looks like my extruder cable got snagged as it is a little rugged on one side. Before I buy a new cable, has anyone had this problem before?

Check if extruder cable is secure, or you may need to replace heater module.

Many thanks Jason Wu. My extruder plug was not plugged in securely. All the best to the Cetus support team for your swift response - Rob