Alle my personal Profiles are gone in Camera Raw 12.3

I installed Camera Raw 12.3. And now all my personal Profiles are gone. I tried do install my *.xmp Files but no Profiles was showed. I only see the standard Profiles. All atempts to import my personal Profiles failed. Error Mesasge: "Profiles and specifications cannot be imported. All elements have already been imported." How can I access my specifications (*.xmp Files)? Please help.