xbmc won't play movies from nas after upgrade to frodo

I recently upgraded to cb2 along with frodo 12.1. After the upgrade I am no longer able to play my movies from my nas, I get -- playback failed, please refer to log file for details. I have attached my log, could you please tell me what I need to do in order to correct the problem? Thanks in advance.

http://xbmclogs.com/show.php?id=12825