Vector 2 Error message in Edge 1030

I got a battery low alert during my last ride. Normally the battery is then still good for another ~200 km. I checked today with my Edge 1030 and got the following info. Error of the right sensor 100-0 and error of the left sensor 0-0. Battery condition  = OK.

Anybody with an idea what this message means? (I'm going to exchange batteries anyway but I'm still curious).

Thank you.

Regards, Michael