As far as i know:
I see you are taking drawing now.
And this message is not important for this activité.
It is looking a part at that adress.
You can show part that catia ask you. Push dest and show part. Maybe this can be succesfull to make it ok.
Maybe: I heard ghostlinks that document took. You can search ghost links problem solutions on google.
But if you are just taking drawing never mind message continue. This message iş not important.
Maybe you can find another solutions too.
Best regards
Mesut