Mar 182013
Error type: "Forbidden". Error message: "Method doesn't allow unregistered callers (callers without established identity). Please use API Key or other form of API consumer identity to call this API." Domain: "global". Reason: "forbidden".

Did you added your own Google API key? Look at the help.

Check in YouTube if the id UCrb7cFjxI74_St3G6phxQ4Q belongs to a username. Check the FAQ of the plugin or send error messages to support.
Error: Neither the "cid" nor the "vid" was passed to the ustream tag!

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