”You do not have sufficient permissions to modify unregistered settings”
Just upgraded the plugin to 0.9.18. Did the ’register your blog as Flattr app’ thingy and got my key and secret.
After filling in the corresponding Flattr-RSS settings, clicking on ’Save’ results in: ”You do not have sufficient permissions to modify unregistered settings for this site.” Thus, I cannot save the key and secret.