The nozzle might be blocked, leading to this issue. Attempt to resolve it by ejecting the filament and ensuring the end is correctly cut. Press the Eject/Temperature button once to initiate filament removal; this process takes 10 seconds. If needed, you can halt the removal process by pressing the button during the operation.
If the problem persists, don't hesitate to reach out to our support team at support@myfirst.tech.