Server unavailable

Hello all,
I’m having problems with TVHeadend. Can’t even get it to work in Kodi.
I can open channel streams on my backend but every time Kodi starts I get a pop up saying the server is unavailable.
I configured TVH with the IP from my backend (Windows 7 Main PC)
http://imgur.com/a/mO0XO

Here’s the log.
https://pastebin.com/n7EUtug0

Thanks in advance for any help I can get.