Creative Cloud Files - full though no files are uploaded

Hi!

I right now have a big issue with Creative Cloud Files.

Problem: For some unknown reason CC told me that I used 20.5GB of my 20GB.

What I have done so far:

- deleted files locally on PC

- checked online if the files are deleted serversided as well

- emptied the trash can.

Now there are no files locally, on the server or the trash. Still 95.8% of 20GB are used. Where does this come from?