kodi crashing on pulse eight cec adapter

Using raspbian linux jessie with kodi 15.2
when i launch kodi anyway (through desktop or terminal) it opens momentarily and in the bottom right I see: Connecting to pulse Eight CEC Adapter
then it crashes. I have to reboot the machine to be able to do anything because the screen goes black.

It was working before so not sure what happened but I have recently plugged in a USB external drive

A copy of the log can be found here: http://pastebin.com/htaefrrt

Any help would be appreciated! Thanks