Internal error in library

The following problem is with the online backup. I keep getting the following error "Internal error in library. The linked position is unknown". After that I get "Operation has succeeded".
When I check on the website to find out what the error is and how to resolve it I get: We are sorry
There is no information about this error available now. You can use the links below to search for any additional information that might be available.
Do you have any info on this issue?? Thanks, Mike