Warning: mysqli_connect(): (HY000/2002): Only one usage of each socket address (protocol/network address/port) is normally permitted. in F:\wwwroot\PUBSYS_Surfinbird\php\Db.php on line 38

Fatal error: Uncaught Error: Call to a member function query() on boolean in F:\wwwroot\PUBSYS_Surfinbird\php\Db.php:42 Stack trace: #0 F:\wwwroot\PUBSYS_Surfinbird\php\utils.php(38): Db->query('SET NAMES utf8') #1 F:\wwwroot\PUBSYS_Surfinbird\php\visa_php.php(49): pubsys_db() #2 F:\wwwroot\PUBSYS_Surfinbird\visa.php(64): require('F:\\wwwroot\\PUBS...') #3 F:\wwwroot\radiotvteknik2011\visa.php(2): require('F:\\wwwroot\\PUBS...') #4 {main} thrown in F:\wwwroot\PUBSYS_Surfinbird\php\Db.php on line 42