Dear Haig,
It sounds like you may have a corrupted index. Please try this for me:
- Stop Dataverse
- Navigate to: %localappdata%\Dataverse\site\data\webapp\repository\modeshape\
- Rename the "indexes" folder to: "indexes-backup"
- Start Dataverse
After walking through these steps, the indexes folder should be recreated, and you should be able to continue as normal.
Please let me know if this does resolve the issue.
Thanks,
Rocco