Fatal error: Uncaught Error: Interface 'Composer\Plugin\PluginInterface' not found in /nfs/bronfs/uwfs/hw00/d88/ecc/wordpress/wp-content/plugins/all-in-one-event-calendar/apiki/vendor/composer/installers/src/Composer/Installers/Plugin.php:9 Stack trace: #0 {main} thrown in /nfs/bronfs/uwfs/hw00/d88/ecc/wordpress/wp-content/plugins/all-in-one-event-calendar/apiki/vendor/composer/installers/src/Composer/Installers/Plugin.php on line 9