Thank you for the information.
This issue occurs when user creates analog input rule (Services -> Input/output -> Input), which measures current.
We informed our RnD team about issue and with next firmware release, this will be fixed.
For now the fix would be to edit analog_calc script.
To open analog_calc script with vi editor enter this text in command line:
In vi editor press Shift+i to enable edit mode and after local ganalog = exec("cat /sys/class/hwmon/hwmon0/device/in0_input") in the new line enter this text:
local gresistor = 1200
Now press "Esc" button to disable edit mode and enter :wq and press "Enter" to save changes and exit vi editor.
With this changes analog_calc will work correctly.