Favourites "Error reading via the IMDI API"

Hi, I did a new session in the Favourit List. When I try to add it to corpus local appears this message:

Error reading via the IMDI API

Do you know where the problem is?
Reggards
Yago

An error message like this usually means the metadata file Arbil is trying to read is invalid or not available. Details get written to the error log. If you can still reproduce this behaviour, could you do so and post a copy the messages that get written to the error log around that time? You can access the error log through the Help menu of Arbil.

You may be able recover from that sort of error by reverting to an older version of that individual file. This can be done by right clicking on the problematic session or corpus in the Arbil tree and selecting “History” and choosing the last good version.