A Microsoft file hosting and synchronization service.
Hello Dimitrios Bastis,
I see that you’ve already purchased the extra 1 TB and OneDrive shows 2 TB total with 10% free. So I wouldn’t assume you need to buy more storage.
Could you try uploading a small file directly on the OneDrive website? Does it give the same “Not enough cloud storage” error, or does the error happen only when saving from your PC? That will help narrow down whether this is specific to the app or also happens on the website.