How do I solve this problem? This same composition has renderd just fine on this machine less than a week ago. I purged all the cache, I made sure I was using the most recent version of AE.
I'm running windows 8.1
32 GB RAM
Without details about your comp, your source files, your render settings etc. nobody can say anything. Start by veryfying that your audio source files are actually technically okay and undamaged. if they are MP3, convert them to WAV/ AIFF.
Retrieving data ...