Fatal error: Uncaught Error: Class 'Drupal\Core\Database\Database' not found in /home/filipfabiszak/public_html/drupal/core/modules/system/tests/fixtures/update/drupal-8.update-schema-version-int.php:10 Stack trace: #0 {main} thrown in /home/filipfabiszak/public_html/drupal/core/modules/system/tests/fixtures/update/drupal-8.update-schema-version-int.php on line 10