Error 0x80004005 has been returned when trying to write the file

Hi there,
When I tried to save a video file recorded with Camtasia this error appeared and I have lost the video. I tried to record another and the same error appeared. I cannot save any recordings that I make cause of this error. Any solution ? How can I fix this error ?
Thank you !

Camtasia Studio
Error: 0x80004005 has been returned when trying to write the file.
OK
