Fatal error: Uncaught Error: Class "Piwik\Plugin" not found in /usr/home/mw2p5ujyzt/www/htdocs/mode2_piwik/plugins/Feedback/Feedback.php:21
Stack trace:
#0 {main}
thrown in /usr/home/mw2p5ujyzt/www/htdocs/mode2_piwik/plugins/Feedback/Feedback.php on line 21