Adobe portfolio custom domain shows white page
I have linked my portfolio page to my website lekkerkort.com using the Manually-configuring-a-custom-domain page. Everything seems to work, and the page is properly propagated trough the DNS system.
If you visit the URL you even get the lock so the page is verified trough let's encrypt.
The problem is you only see a blank page.
If I view source i see the following:

This is not right as it creates a loop, because if you visit lekkerkort.myportfolio.com you get redirected to lekkerkort.com creating a loop.
I have tried removing and re-adding the domain as suggested by the help page.
Please help me fix this
