Did you google for the errors?
When I google for "ERROR: Cannot open client name = dbusapi" and only
flip through the replies (no time to read it for you ;), I read
"yesterday it works, today it doesn't work anymore" and then I read
"pulseaudio, pulseaudio, pulseaudio".
Just a shot in the dark, if you've got pulseaudio installed, than purge
remove it.