Error message: Sail library met some error

Hi there,

I came across this error in the roboEngine error log:

Sail library met some error, MsgID: 25, Msg: ERROR_INTERNAL.

I also have a whole bunch of errors relating to older projects that no longer exist:
- Fail to create IFilter object
- Cannot open the URL:
- There has no any documents for indexing in this project.

Haven't been able to find any help via the help system or google,

Thanks for your time,

Cam.