hmmmm, you may have a loose extruder gear? You will need to check that the extruder motor is gripping onto the filament well - push and pull the filament, it should move the stepper motor?
If that is OK, maybe a blocked nozzle, try heating to 230°C and then extruding about 50-80mm of filament though it.
Assume the settings are all as per normal - i.e. you haven’t set any weird retraction settings or anything that is causing the filament to go back too much?