For some errors we will request you send over the log files so we can get more of an idea of the cause, please send these as a zip file, if the zip file is still too large to send please call us and we look remotely. These can be found in the following location:
C:\Users\[User name backup runs from]\[either .acb or .obm – depending on the type]\log
PLEASE NOTE: .obm is for a business user, and .acb is for a single user.