help me plz !!!
i have successfull install ojs 2.4.8, after login as admin and go to site administrator it always getting this error.
ojs2 has produced an error\n Message: WARNING: fsockopen(): unable to connect to pkp.sfu.ca:80 (Connection timed out)\n In file: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/file/wrappers/HTTPFileWrapper.inc.php\n At line: 77\n Stacktrace: \n File: (unknown) line (unknown)\n Function: PKPApplication->errorHandler(2, “fsockopen(): unable to connect to pkp.sfu.ca:80 (Connection timed out)”, “/home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/file/wrappers/HTTPFileWrapper.inc.php”, 77, Array(7))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/file/wrappers/HTTPFileWrapper.inc.php line 77\n Function: fsockopen(“pkp.sfu.ca”, 80, 0, “”)\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/file/FileWrapper.inc.php line 53\n Function: HTTPFileWrapper->open()\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/xml/XMLParser.inc.php line 258\n Function: FileWrapper->contents()\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/db/XMLDAO.inc.php line 56\n Function: XMLParser->parseStruct(“http://pkp.sfu.ca/ojs/xml/ojs-version.xml?id=&oai=http%3A%2F%2Fjournal.polowijogosari.com%2Findex.php%2Findex%2Foai”, Array(0))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/site/VersionCheck.inc.php line 82\n Function: XMLDAO->parseStruct(“http://pkp.sfu.ca/ojs/xml/ojs-version.xml?id=&oai=http%3A%2F%2Fjournal.polowijogosari.com%2Findex.php%2Findex%2Foai”, Array(0))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/site/VersionCheck.inc.php line 47\n Function: VersionCheck->parseVersionXML(“http://pkp.sfu.ca/ojs/xml/ojs-version.xml?id=&oai=http%3A%2F%2Fjournal.polowijogosari.com%2Findex.php%2Findex%2Foai”)\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/site/VersionCheck.inc.php line 205\n Function: VersionCheck->getLatestVersion()\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/pages/admin/AdminHandler.inc.php line 42\n Function: VersionCheck->checkIfNewVersionExists()\n File: (unknown) line (unknown)\n Function: AdminHandler->index(Array(0), Object(Request))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/core/PKPRouter.inc.php line 362\n Function: call_user_func(Array(2), Array(0), Object(Request))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/core/PKPPageRouter.inc.php line 220\n Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(0), False)\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/core/Dispatcher.inc.php line 134\n Function: PKPPageRouter->route(Object(Request))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/lib/pkp/classes/core/PKPApplication.inc.php line 178\n Function: Dispatcher->dispatch(Object(Request))\n File: /home/www/vhosts/polowijogosari.com/journal.polowijogosari.com/index.php line 64\n Function: PKPApplication->execute()\n Server info:\n OS: Linux\n PHP Version: 5.4.45\n Apache Version: Apache\n DB Driver: mysqli\n DB server version: 5.5.55