PHP Error !

pg_connect(): Unable to connect to PostgreSQL server: could not connect to server: Connection refused Is the server running on host "103.79.130.194" and accepting TCP/IP connections on port 5434?

Filename: postgre/postgre_driver.php

Line Number: 154

Backtrace:

File: /home/hrprod/public_html/application/third_party/MX/Loader.php
Line: 109
Function: DB

File: /home/hrprod/public_html/application/libraries/HistoryLog.php
Line: 10
Function: database

File: /home/hrprod/public_html/application/third_party/MX/Loader.php
Line: 173
Function: _ci_load_library

File: /home/hrprod/public_html/application/libraries/Aauth.php
Line: 98
Function: library

File: /home/hrprod/public_html/application/third_party/MX/Loader.php
Line: 173
Function: _ci_load_library

File: /home/hrprod/public_html/application/models/Mcore.php
Line: 9
Function: library

File: /home/hrprod/public_html/application/third_party/MX/Loader.php
Line: 213
Function: model

File: /home/hrprod/public_html/application/hooks/Authenticator.php
Line: 11
Function: model

File: /home/hrprod/public_html/index.php
Line: 318
Function: require_once

PHP Error !

Cannot modify header information - headers already sent by (output started at /home/hrprod/public_html/system/core/Exceptions.php:271)

Filename: core/Common.php

Line Number: 573