As this is a low-level error message which can have multiple causes, such as GroupWise data store corruption issues, there is no universal solution.
Data related issues can sometimes be resolved through a thorough GWCheck process. Difficult ones may need to be isolated or bypassed using the start folder troubleshooting facility mentioned in the Archive To Go Creator guide.
More information may be available in the Details of the exception dialog which displays when the error occurs. Could you please copy these details and send them to email@example.com for analysis.