Sync Error

I keep getting the following error message (ever couple of minutes):

8:32:38 Synchronizer Version 14.0.6117

8:32:38 Synchronizing Mailbox 'Chris Bouvier'

8:32:38 Synchronizing local changes in folder 'Drafts'

8:32:38 Uploading to server 'outlook.kepro.org'

8:32:38 Synchronization of some deletions failed.

8:32:38                   [8004010F-501-8004010F-130]

8:32:38                   The client operation failed.

8:32:38                   Microsoft Exchange Information Store

8:32:38                   For more information on this failure, click the URL below:

8:32:38                   

8:32:38    1 item(s) deleted in online folder

8:32:38 Done

HELP, PLEASE!