Error in Page Attributes -> Author field not loading
I Have created a second Usergroup with nearly all rights. Everythin works fine.
But if I edit the page Attributes, I get an error triggered by the author field, which can't be loaded. The page was created by the admin.
In dev console I checked out that the error (500) comes from
Error: Unable to get permission key for view_user
Do you know the problem? See attachments.
Thanks your your answers.
"The author loading spinner keeps loading because of invalid JSON. "