Warning: file_get_contents(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /library/My/Plugin/AdminAuth.php on line 29

Warning: file_get_contents(http://mento.vipserv.org/mento_api/sites_up.php?site=tance.edu.pl): failed to open stream: php_network_getaddresses: getaddrinfo failed: Name or service not known in /library/My/Plugin/AdminAuth.php on line 29

Fatal error: Uncaught Zend_Controller_Response_Exception: Cannot send headers; headers already sent in /library/My/Plugin/AdminAuth.php, line 29 in /library/Zend/Controller/Response/Abstract.php:323 Stack trace: #0 /library/Zend/Controller/Response/Abstract.php(341): Zend_Controller_Response_Abstract->canSendHeaders(true) #1 /library/Zend/Controller/Response/Abstract.php(768): Zend_Controller_Response_Abstract->sendHeaders() #2 /library/Zend/Controller/Front.php(992): Zend_Controller_Response_Abstract->sendResponse() #3 /library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch() #4 /library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run() #5 /public/index.php(30): Zend_Application->run() #6 {main} thrown in /library/Zend/Controller/Response/Abstract.php on line 323