Error 100:Generic Database Error?

Hi; I just signed up and seem to be having some trouble with the desktop client. Specifically, I can't rename folders I've created without receiving errors... such as the below

Connected to Xdrive!
Disconnected from Xdrive
Connected to Xdrive!
Synching "/"
Exploring "OneNote"
R Begin: 0: 4096 /OneNote/20070427 Gelman Meeting Notes.doc
R End : 0: 4096 /OneNote/20070427 Gelman Meeting Notes.doc
R Begin: 4096:28672 /OneNote/20070427 Gelman Meeting Notes.doc
R End : 4096:24576 /OneNote/20070427 Gelman Meeting Notes.doc
Rename "OneNote" to "OneNote3"
Error 100:Generic Database Error. Please try your action again.
Create Directory "/New Folder"
Exploring "New Folder"
Rename "New Folder" to "test"
Error 100:Generic Database Error. Please try your action again.

This is with the latest desktop client - 5.1.162. Any thoughts? I was hoping to use OneNote with it.