Fatal error: Uncaught Error: Interface 'Ladybug\Plugin\PluginInterface' not found in /home/lafaamicps/www/symfony/vendor/raulfraile/ladybug-themes/Ladybug/Plugin/Symfony2/Symfony2Plugin.php:17 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/raulfraile/ladybug-themes/Ladybug/Plugin/Symfony2/Symfony2Plugin.php on line 17