After I tried to update to the latest Piwik version 1.12 (via auto update) my installation is broken and I get the following error:
Unable to load plugin 'ExampleFeedburner' because '/path/piwik/plugins/ExampleFeedburner/ExampleFeedburner.php' couldn't be found.
An indeed, the file mentioned above is missing on the server. But it is not in the package of the new version neither. What am I supposed to do?