I just installed the flattr plugin, connected my flattr id with it, but the plugin doesn't seem to work.
after adding the flatter widget to the sidebard, it displays an !error message. when clicking on the flattr button, it brings me to the flattr integration page.
moreover, the settings are not saved by the flattr plugin preferences menu (for example, the 'insert flattr button automagically', or the language setting
is this a common issue? how to solve it?