Unexpected error when starting identification process

Hi, I’m getting an unexpected error when trying to start the identification process for my mobile abo.
When clicking on the link “Begin identification process” (https://www.sunrise.ch/mysunrise/en/residential/customer-data#/EditPersonalData) the page is trying to load for 2 min and then an unexpected error occurs: “Attestation check for Topics on https://www.sunrise.ch/ failed.” is visible in the dev-console.

Can you please fix it?