Es gibt unten Informationen im Protokoll, aber keine Ahnung, was dies verursachen könnte :(
a: 5: {i: 0; s: 45: "Antwort kann nicht gelesen werden oder Antwort ist leer"; i: 1; s: 1003: "# 0 lib / Varien / Http / Client.php (61): Zend_Http_Client-> request ('GET')
# 1 app / code / core / Mage / Adminhtml / controller / 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 / Magier / Kern / Controller / Varien / Router / Standard.php (254): Mage_Core_Controller_Varien_Action-> Versand ('Tunnel')
# 4 App / Code / Kern / Magier / Kern / 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 ";}