try to change db config

class/db.php

@@ -8,7 +8,7 @@ class Db
 	{
 		try
 		{
-			$this->db = new PDO('pgsql:host=localhost;dbname=nf17p110', 'nf17p110', 'gXYc4mPg');
+			$this->db = new PDO('pgsql:host=tuxa.sme.utc;dbname=nf17p110', 'nf17p110', 'gXYc4mPg');
 		}
 		catch (Exception $e)
 		{