Gitlab services timeout error - 4 services ( Gitlay, gitlab exporter, gitlab workhorse and sidekiq) are not restarting

We installed the gitlab self managed application recently. Suddenly services got down. while trying to restart the services, 4 services ( Gitlay, gitlab exporter, gitlab workhorse and sidekiq) are not restarted. All other services are running fine logs are getting printing in respective log directories . what could be the issue? How do we restart the services