"Connection to backend lost" on OSX

Hi there!
I have sonarr app version: 2.0.0.3004 running on OS X Yoesemite.
Everything works great, but everyday I get “connection to backend lost”. I then have to manually restart sonarr from the application to make it work again. I don’t see any errors in the log. This happens every day for me, and is quite annoying.
Please help!!

Is Sonarr running or stopped when you see those messages?

Sonarr is stopped., there is no downloading when this happens.

Please pastebin trace logs the next time you see this happen.

Will do, hopefully soon

Hi! here is the pastebin you were asking for, hope you can help:
http://pastebin.com/Y5v2xENv

Unfortunately there is nothing there that indicates an issue. Which version of mono are you running?

-mono-mac-3.12.0-branch-32/bockbuild-mono. I am thinking maybe my vpn provider(Airvpn) is causing it.
I read through the logs from Airvpn and there was a manifest update and latency test at the exact same time as the connection to sonarr got lost. I am not sure, but I have modify the settings in the preference, so just have to wait and see if the problem is solved.(turned off network lock, latency test and some other features)