Error!: SQLSTATE[HY000] [2002] Only one usage of each socket address (protocol/network address/port) is normally permitted

Fatal error: Uncaught Error: Call to a member function prepare() on null in W:\html\php\CLib\SQL\CrnlPDO.php:559 Stack trace: #0 [internal function]: CLib\SQL\CrnlPDO->fetch() #1 W:\html\php\CLib\SQL.php(73): call_user_func_array() #2 W:\html\php\CLib\SQL.php(207): CLib\SQL->__call() #3 W:\html\public\404\includes\datahandler.php(88): CLib\SQL->fetch() #4 W:\html\public\404\includes\framework.php(75): CLib\DataHandler->handle_redirect() #5 [internal function]: CLib\CornellFramework->index() #6 W:\html\php\CLib\Framework.php(279): call_user_func() #7 W:\html\public\404\index.php(20): CLib\Framework->router() #8 {main} thrown in W:\html\php\CLib\SQL\CrnlPDO.php on line 559