I noticed it appears you have an exception related to Postgres in the logs, right above the console output you have shared. The stack trace itself is cut off, but I suspect that may be related to your issue.
Are you able to connect to the Postgres database via something like pgAdmin using the default credentials provided in the installation guide and validate that the tables were created/etc? What do you see if you open the PerformanceViz.twb in the root directory?
If you edit the vizpool.csv in the config directory of your Tabjolt installation, that should work. Can you share the contents of that file currently? I'm not quite sure if I understand what you mean by 'This is followed by Tableau Server's path'. There shouldn't be additional path information in the file.