no response from server - un authorised

Hi there plex has been working flawlessly for months now but today i have this error message on my ATV 3 and it wont load plex including channels and shared library’s. I still have internet access from the atv, its just locked out of the plex server for some reason

i have signed out and back in again,
rebooted the atv and pc
updated plex connect from git

in settings it can see my server, and i am signed in. Its as if the certificates flie is missing… i have checked and ok.

any ideas?

Can you post logs?

Thanks baa.
This is part of one of the logs,i think showing several attempts to open plex.

http://pastebin.com/raw.php?i=phyjy10b