Fatal error: Uncaught Error: Class "Drupal\Core\Plugin\PluginBase" not found in /home/quitpathshareaco/public_html/New/vendor/drupal/core/modules/media/src/MediaSourceBase.php:21 Stack trace: #0 {main} thrown in /home/quitpathshareaco/public_html/New/vendor/drupal/core/modules/media/src/MediaSourceBase.php on line 21