Changing Error Code on MPPT 100 / 50 - UGH!

Looking for a little guidance from knowledgeable folks. Put the batteries back into my truck camper to get ready for summer trips. The Victron system via phone app said error code #116 calibration data lost for the solar MPPT 100 / 50 controller. Ugh!

So… I disconnected batteries and pulled fuses. Put everything back together… then new error code #2 battery voltage to high (MPPT 100 / 50 app reads 65.54V). But that is incorrect as my Victron Smart BMV on app reads 13.14 V and my multimeter reads the same. The original error code 116 does not appear.

Suggestions on where to go from here? Appreciate feedback.

Update and reprogram the mppt.

Although if it has failed the basic function test its on its way to be replaced.