Yesterday I uploaded a new version of the Canola2 Youtube plugin to maemo extras repository. Youtube has changed the way it references the .flv file, breaking the way we were dealing with it. Kudos to Adriano who's been doing an excelent job maintaining the plugin.
As usual, the source code is available in the Canola2 website and in the Maemo extras repository as well.
Please update your installation by clicking on "Check for updates" button in the Application manager. Big thanks to everyone who reported the issue on our tracker.