Hi Seraphyx,
Thanks for letting me know and I am sorry you have experienced problems with the plugin.
The error you received means that when you arrived back to our server from Twitter, none of the expected data was found. This issue has come up several times and has, so far, always been tracked back to the user being inside a corporate/government network.
It is a very difficult problem to debug, due to the variety of software, hardware and network configuration that could possibly be involved on each users PC. I will try my best to identify the problem with any information you can give me.