Uploading new model failed due to non-valid parameter values

Today I tried to upload a new model and it fails every time.
Printed without any problems. First I thought it might be due to the Linux version I created the 3mf file with (latest BambuStudio 2.08.02.61. Also tried with the latest 2.7 version. Does not all make any difference. And I recreated the model on Windows 11 which also did not change anything.
Any recommendations?

Are you using the Beta version? If so, go out of it. When I was using the Beta version, i tried to upload a model and it gave me a similar message.

No, the regular release version.

On sunday I uploaded a new model without any problems and created the 3mf with the same version.
I tried now with only a generic cube inside the 3mf and it failed as well, so there might be a loss of service or problem in the Makerworld backend.