Welcome!

To start, we will want to know what filament you are using (make I'm assuming QIDI, but what color?) and what temperature you are extruding at.

I would recommend removing the nozzle from the extruder and cleaning it out if possible, it definitely sounds like there was some buildup. Might be an issue if you don't have a spare nozzle + PTFE tube to use, the nozzles PTFE tube had clogged/solidified on me one time and I fixed it easily by replacing the nozzle + tube.

Another thing to try is bumping up the temperature by 5 degrees C or less in increments to see if it's a temperature issue - the reading could be off for your sensor and there may also be a sensor problem which I haven't troubleshot on this machine. I wouldn't recommend going over 250c for ABS during testing.