Merge pull request #16808 from nextcloud/bugfix/16626/undefined-respo…

…nse-if-server-is-no-nextcloud-anymore

Undefined variable response when server is no nextcloud anymore

lib/private/Files/Storage/DAV.php

@@ -268,7 +268,7 @@ protected function propfind($path) {
 				);
 				$this->statCache->set($path, $response);
 			} catch (ClientHttpException $e) {
-				if ($e->getHttpStatus() === 404) {
+				if ($e->getHttpStatus() === 404 || $e->getHttpStatus() === 405) {
 					$this->statCache->clear($path . '/');
 					$this->statCache->set($path, false);
 					return false;