BUG #15664: A bug with the application Holdem manager 2

The following bug has been logged on the website:

Bug reference: 15664
Logged by: jose Alvarez
Email address: spynter123@gmail.com
PostgreSQL version: 11.2
Operating system: Window 10
Description:

I got bug ERROR FATAL: 28P01 database server no connect in my pc, what
solution for that?