I totally agree that those errors are meaningless, the next version of the mobile app will address this problem. What that means is that your hub is no longer connected to the cloud.
This is also a side-effect of the fact that the hub isn't connected to the cloud. Here is a post from yesterday of someone else who had a cloud connection problem:
Push Notification service requires cloud connection, so you will not be able to receive push notifications if your hub isn't connected to the cloud.
