This alarm indicates that the calibration run failed. Check that the battery and the motor are connected correctly and that nothing is blocking the motor. Try turning the motor shaft manually and make sure it rotates relatively freely and is not stuck (be careful to disconnect the battery first so that the motor does not start unexpectedly and cause damage).
[NOTE: (Applies to FeedCon model 1) When calibrating, do not forget to cover / release the cable to the solar panel!]
If the problem persists, contact Nordic Gamekeepers support.