Leafmotor

Before less than one year, I bought electric bike motor kit from you.
Everything is perfect. But today, when I am went to ride, so LCD started writing error. Exactly error 1 , what is fault of twist throttle.
The throttle is always in full position what means that bike still accelerate. I attached photos. I already have behind me exactly thousand kilometers and i started ride from June.

I tried find out where is mistake and I have suspicion that hall sensor inside of throttle is dead. Supply voltage (black+red) is 4,32V what is ok, but output voltage (blue) is in basic position of throttle is 2,0V and full position of throttle is 2,7V. (I don’t know right values)
Can you help me with this problem, please?

Please press “up” to make it be “1 or 2 or 3 or 4 or 5”
Can’t be 0
There is a “ 5 or 4 or 3 or 2 or 1 or 0” on the Left side of LCD.
* Be “0” – throttle & pedal assist NOT work.
* Be “1” – throttle works (If install pedal assist, pedal about 3 circels,then can drive motor to work)
* Be “2” – throttle works (If install pedal assist, pedal about 2.5 circels,then can drive motor to work)
* Be “3” – throttle works (If install pedal assist, pedal about 2 circels,then can drive motor to work)
* Be “4” – throttle works (If install pedal assist, pedal about 1.5 circels,then can drive motor to work)
* Be “5” – throttle works (If install pedal assist, pedal about 1 circels,then can drive motor to work)

If NOT install that pedal assist, ONLY use throttle to drive electric bike motor. But Should be 1 or 2 or 3 or 4 or 5.(Be 0,turn off throttle)

Disconnect throttle plug..

Always press “down”, if motor works with walk speed.. everything is good that means replace a throttle can solve it.

I tried find a mistake, and I have suspicious on bad magnet inside a throttle, hall sensor is fine, I had him out and he worked good, but if I put him back to throttle, so his behavior is unpredictable.

I think that cable and hall sensor is ok, but last thing is magnet, maybe he lost magnetic..