Autodesk Product Support may require:
In order to troubleshoot this case the following files are required.
1. Central Project File (Upload to FTP site)
2. Local Project File (Upload to FTP site)
3. Any linked Cad or Revit Files. (Upload to FTP site)
4. Worksharing log file (.slog extension in central file backup folder).
5. Journal files from time of occurrence (c:\programfiles\revit version\journals)
6. The build number of Revit Architecure software program the customer is using
Create a new folder, include date in the folder name, and copy all the relevant files to it.
The act of fixing the problem is likely to overwrite some of these files so do it before attempting to fix anything.