I am encountering a similar problem, but it is stopping the site opening on an open social distribution with the error:
Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "Drupal\file_mdm\FileMetadataManagerInterface". in Drupal\Component\DependencyInjection\Container->get() (line 157 of core/lib/Drupal/Component/DependencyInjection/Container.php).
I have tried adding File metadata manager with composer, but that fails with:
Problem 1
- Root composer.json requires drupal/file_mdm ^3.1, found drupal/file_mdm[dev-3.1.x, 3.1.0-alpha1, ..., 3.1.x-dev] but these were not loaded, likely because it conflicts with another require.
Problem 2
- drupal/image_effects 3.4.0 requires drupal/file_mdm ^2.5 -> found drupal/file_mdm[dev-2.x, 2.5.0, 2.6.0, 2.x-dev (alias of dev-2.x)] but it conflicts with your root composer.json require (^3.1).
- goalgorilla/open_social 12.4.2 requires drupal/image_effects 3.4.0 -> satisfiable by drupal/image_effects[3.4.0].
- goalgorilla/open_social is locked to version 12.4.2 and an update of this package was not requested.
I think this must be related to your issue.