Fatal error: Uncaught Error: Class "Drupal\Core\DependencyInjection\ServiceProviderBase" not found in /home/fnbrshareacopy/public_html/modules/contrib/entity_reference_revisions/src/EntityReferenceRevisionsServiceProvider.php:14 Stack trace: #0 {main} thrown in /home/fnbrshareacopy/public_html/modules/contrib/entity_reference_revisions/src/EntityReferenceRevisionsServiceProvider.php on line 14