Fatal error: Uncaught Error: Interface 'Drupal\Core\PageCache\RequestPolicyInterface' not found in /var/www/html/tmp/contrib/simple_oauth/src/PageCache/SimpleOauthRequestPolicyInterface.php:18 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/simple_oauth/src/PageCache/SimpleOauthRequestPolicyInterface.php on line 18