Unable to register for Identitätsnachweis on taxme.ch belogin

Hello

This is my first tax year in Canton of Bern and I am having trouble to file my tax return on taxme.ch

I registered successfully using my SwissID then get stuck at the Identitätsnachweis step. I enter my ZPV-Nr (that I received on my tax notification letter) and birthday and it gives me this error

Für den Identitätsnachweis benötigen Sie einen steuerlichen Anknüpfungspunkt zum Kanton Bern.

I have tried to use the option to give AHV-Nr but it give the same error.

What should I do in this case?

Do you have your BE Login account?

https://www.belogin.directories.be.c...Language=de-CH

Many thanks, I register and it work now