Error while creating Power Page

Hi,

When trying to create a Power Page, I get the following error. It’s in Dutch but it says the setup process can’t be completed, try again.
MicrosoftTeams-image (1)

Well, I tried again but to no avail :smiley:
I am able to select new/create page, select the correct (tried both production and sandbox) environment, pass the permission check (got both the PP permissions and those on AD), select a template and name etc. It’s only after a few minutes of the setup process that the error occurs, with no further information.

Another quirk is that I was only allowed to create a Page after I created a Portal (which was successful).

Any ideas on what might be wrong?

Thanks!
Dries