Hello!
I was trying to Log-In into my Account and to Download my Stuff, unfortunately the “My Account” Site and the Webshop are just two white Pages.
This happens on MacOS in Firefox and Safari.
Mac Mini late 2020
MacOS Monterey 12.2
Safari 15.3
Firefox 96.0.3
I also tried this on an IPhone 8 on Safari (same result).
Screenshots from MAC: