Fatal error: Uncaught PDOException: SQLSTATE[08006] [7] connection to server at "localhost" (::1), port 5432 failed: Connection refused Is the server running on that host and accepting TCP/IP connections? connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused Is the server running on that host and accepting TCP/IP connections? in /var/www/html/project/database_functions.php:76 Stack trace: #0 /var/www/html/project/database_functions.php(76): PDO->__construct() #1 /var/www/html/project/device.php(93): getConnection() #2 {main} thrown in /var/www/html/project/database_functions.php on line 76