Invalid handle to path "" and Non-sample file detected

I’ve started to get these errors for the past few episodes of one of the series. The episodes aren’t getting processed anymore, any ideas why this happening?

Here are the logs
http://hastebin.com/ofuhukahoc.tex

I’m on Sonarr Ver. 2.0.0.2850 (can’t seem to update, getting permission errors but that’s another issue)

Seems to be coming from mono, which version of mono are you running?
Which OS?

You definitely want to get updated, there are a lost of fixes in 2.0.0.3004.

I have version 3.10 and on Ubuntu 14.04. I’ll try and get the permission issue fixed and update sonarr, if that doesn’t fix it I’ll report back

Ok so I got it to update but I’m getting the exact same errors as before

Are you seeing the error on the same line number? Could you hastebin some trace logs of the process?