The head got stuck.

"1. Press the power button to shut down the machine and allow the fan blades to fully return to their neutral position.
2. Check if the floor surface is level before moving the unit to a new location.
3. Inspect the base for any foreign objects entangled or obstructing the machine.
4. Disconnect power and restart the device. If it fails to reset, please provide a video of the issue for repair."