One drive doesen't sync anymore

Guys, from yesterday everytime i try open onedrive, from pc or phone, it give error.

Windows 7 and last version of onedrive.
Sometimes by web it open onedrive, i see file, but if i try open, say error.
Office web can't work because it say can't save in Onedrive...

Some files that i uploaded yesterday, today very slowly was sync. But i tried cancel files, nothing.. always error.
My internet line is good....
WHat can i check?
Thanks