Fatal error: Uncaught Error: Interface "Composer\Plugin\PluginInterface" not found in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/oomphinc/composer-installers-extender/src/Plugin.php:12 Stack trace: #0 {main} thrown in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/oomphinc/composer-installers-extender/src/Plugin.php on line 12