skydrive having problems syncing 334 files that have been synced in the past

In the last two days I've been having syncing problems with files that have been synced before - what's going on - I got a message that looked like MS Skydrive was having problems with uploading as well - need to know when this is going to be fixed - I just got another error message saying "error uploading files" - I just purchased Office University 365 a few weeks ago - please let me know what's going on - my research and teaching storage are in these files.

Tony