Cannot sync iCloud drive to macbook
I had to downgrade my macbook to yosemite and now iCloud won't sync anymore. I can still use it on my iphone, and see all my files on iCloud.com. On my macbook in Finder, there are no files in iCloud Drive, Notes isn't working, and my reading list in safari shows nothing as well.
I have tried to log back in, do a restart, but nothing has helped so far. Any thoughts?
MacBook Pro, OS X Yosemite (10.10.5)