Twitter has announced it will stop using version 1.0 of the Twitter API on May 7, 2013. This API is used by Tweet Lovers. I have decided not to update Tweet Lovers anymore. This means Tweet Lovers will not work anymore from May 7, 2013.
For the ones who are using this small plugin, I apologize. Tweet Lovers has never made it to such a success as my other plugin Dynamic Widgets is.