Multiclips - Failed to open media file...

Please attach your fcpxml and copy/paste in the error message text (do not attach a screen grab of the error message).

Hi
I'm working on a series of fiction and to pass certain scenes to aaf gives me the error:Failed to open media file... and doesn't have some files in aaf file.
Are clips edited in multiclips and it is camera audio but I do not understand why the error occurs.
The FCPXML is verify agaisnt fcpxml.
I send several captures of used sttings.

Thanks in advance,
Best