The "content_moderation.state_transition_validation" service or alias has been removed or inlined when the container was compiled

Before moving to a new major version you should first move to the latest minor version of your current major, i.e. 1.6

Also please adhere to the issue etiquette before setting something to Critical: https://www.drupal.org/docs/develop/issues/fields-and-other-parts-of-an-... →