unable to connect to server error

[TurnCheckRaise07]

hi im having some problems with poker tracker 3. I have the trial version and it was running great for about 2 weeks but now it wont import any hands giving error

Unable to begin feeder import process. Reason: Unable to login to database (PT3 DB). Reason: could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "localhost" and accepting TCP/IP connections on port 5432?

i have no clue where port 5432 is or anything like that could really use some help here. any suggestions greatly appreciated. thank you.

[TurnCheckRaise07]

nevermind got it.... postmaster.bid