I tried this but it did´t work.
There is still the same error message.
Btw.
I just created a new user account with an empty iTunes Library.
With that account I can activate the iCloud Music Library.
What could be the problem?
I don´t want to delete my old library with +25.000 songs from the last 35 years.
Could there be a problem with my library?
Can I recreate or fix it?
EDIT:
After retrying it again and again I got another error message.
It says that the iCloud Library can only handle up to 25.000 songs...
Does that mean that all iTunes users with +25.000 songs in their library can´t use Apple Music?