ZP-118

- fixed: only try to access DeviceManager if it's available

git-svn-id: https://z-push.org/svn/z-push/trunk@1324 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5

src/index.php

@@ -264,7 +264,8 @@ include_once('version.php');
         }
 
         // Announce exception to process loop detection
-        ZPush::GetDeviceManager()->AnnounceProcessException($ex);
+        if (ZPush::GetDeviceManager(false))
+            ZPush::GetDeviceManager()->AnnounceProcessException($ex);
 
         // Announce exception if the TopCollector if available
         ZPush::GetTopCollector()->AnnounceInformation(get_class($ex), true);