Linked files gone silent!?

Hello 

Running Audition CC for OSX. 

I was working on an .sesx with multiple files that I was inserting into the timeline using markers. 

The program crashed.

Now all of the source files that were inserted into the timeline are all silent... Like, no sound at all. The only thing that they seemed to retain is their length and name. 

These files were not backed up anywhere, so this is very concerning. 

Has anyone dealt with such a thing? Becuase if they are truly gone forever I do not think that I can ever reliably use this program again. 

Thanks in advance,

Mike