You will need to contact Lotus Notes for support with their product. I have no information in my database for troubleshooting Lotus Notes.
Follow the given steps to resolve the error:
1) Restore the data from recent database backup
2) R fixup -f", then "compact -c -i" command to recover the corrupt database.
Note: If the inbuilt Lotus repair doesn’t help you to repair the corrupt database then, you require some alternative Lotus Notes Recovery software to repair and recover the corrupt database items.
or you can try to use nsf repair -