PokerTracker

Hi!
I have a problem. I purchased Pokertracker 4 for mac and installed it. I got it working and have played a few hundred hands but now when I try to start I get this error message:

Unable to login to database(postgres). Reason: could not connect to server: No such file or directory ls the server running locally and accepting connections on Unix domain socket"tmp/.s.PGSQL.5432"?

What should I do?

In Applications do you have a PostgreSQL folder? If so, what version is it?

I have got it working. I reinstalled postgresql. I started two threads of this matter, didn´t see first that there was a forum for Mac.
Thanks anyway!