Interesting. I guess the issue is that $HOME is on a filesystem which does not support unix sockets, right? That's clearly a bug on our side: We should create them somewhere else where we can rely on HFS+ and its capabilities. I'll take a look at this.
FYI: Until we have a fix, the product should continue to work normally. The issue will advertise only when next any program update is out: It will be unable to restart processes running in active user session (e.g. the helper program behind the tray icon). That can then be worked around by reboot or logout/login.
Thanks for the report.