ログには以下の情報がありますが、これを引き起こす原因が何かはわかりません:(
a:5:{i:0; s:45: "応答を読み取れないか、応答が空です"; i:1; s:1003: "#0 lib / Varien / Http / Client.php(61):Zend_Http_Client-> request( 'GET')
#1 app / code / core / Mage / Adminhtml / controllers / DashboardController.php (100):Varien_Http_Client-> request( 'GET')
#2 app / code / core / Mage / Core / Controller / Varien / Action.php(418):Mage_Adminhtml_DashboardController-> tunnelAction()
#3 app / code / core / Mage / Core / Controller / Varien / Router / Standard.php(254):Mage_Core_Controller_Varien_Action-> dispatch( 'tunnel')
#4 app / code / core / Mage / Core / Controller / Varien / Front.php(172):Mage_Core_Controller_Varien_Router_Standard -> match(Object(Mage_Core_Controller_Request_Http))
#5 app / code / core / Mage / Core / Model / App.php(365):
#6 app / Mage.php(684):Mage_Core_Model_App-> run(Array)
#7 index.php(83):Mage :: run( 'my_store'、 'store')
#8 {main} ";
s:3 : "url"; s:543: "/ index.php / admin / dashboard / tunnel / key / ba90f30f2af450c5980c4c6353c49d61 /?ga = ..&h = ..";
s:11: "script_name"; s:10: "/ index.php ";
s:4:" skin "; s:5:" admin ";}