The log is telling us that there is some unknown Limit that has been exceeded. Unfortunately nobody seems to know what the Limit is, how is is calculated, what the measurement is or what period it is averaged over.
Some have said a reboot works for them but my guess is that it just resets the counters and the interval.
I'd recommend that you take a look at the tile and see if you really need it to update as frequently as it does. For example, if it were reporting temperatures perhaps you have a very chatty temp sensor that is reporting way too often or perhaps reporting 1/10th of a degree changes. But is that really needed?
There are a couple of controls in the Publish section which relate to reducing the number of times createTile() is called. I'll let you read about them in the post above.
