I can't turn on DESS

I try to enable DESS on my setup and it always ends with error #1510:



I tried different settings, nothing helps. If I use non-beta VRM, it gives error #1520
Current ESS settings:


What could be the reason for this behavior of the setup wizard?

I continue to “war” with my system. I updated multiplus to the latest firmware v556, updated CERBO to v3.60~53, set up everything again. Changed a little connection of MPPT controller, tried to clear browser cache, but the result is still the same - error 1510.
Maybe some of the respected experts can advise me how to enable DESS?