Twitter sidebox Cached

[lolwaut]

I am not sure, but it seems that the twitter service is regularly down and responds with invalid xml then, maybe this problem is related (of course when the service is down the the cache should be used by the application, EDIT: but it might pick up the invalid xml and even cache that).

Do you have any errors in your php error log related to the twitter sidebox?

There are no php error logs related to the twitter sidebox. However, I did take a look at twitter_cache.xml. When the sidebox displays nothing, this is what the XML file looks like:

<hash><error>Rate limit exceeded. Clients may not make more than 150 requests per hour.</error><request>/statuses/user_timeline/fredssupply.xml?count=25</request></hash>

Why am I exceeding the rate limit? I thought that was the whole point of having the cache.... please advise and thank you for your help.