Whenever i go to UI3 and click on any of my cameras to get the alert list then click on one of the available alerts it just goes blank and i get an error and this is what it says...

alertlist response did not indicate "success" result: {"result":"fail","session":"692f04f130d029e0367f61151d362a20","data":{"reason":"Camera or group not found"}}

Any idea how to fix this??