Gitlab configuration from UCS console not working


I am on UCS 4.4.4 and using Gitlab 12.1.0-ee from the App Center. I tried to setup email and domain for the cloning repository via the UCS console. But it is not updating as I am getting errors in sending a test email from Gitlab. It gives, ArgumentError (SMTP From address may not be blank: nil)

In gitlab.rb from /var/lib/univention-appcenter/apps/gitlab/conf, I see that the email and the external URL are not updating and shows as null.

external_url ‘https://None:22222/gitlab

_## Email Settings
_# gitlab_rails[‘gitlab_email_enabled’] = true
_gitlab_rails[‘gitlab_email_from’] = ‘None’
_# gitlab_rails[‘gitlab_email_display_name’] = ‘Example’
_gitlab_rails[‘gitlab_email_reply_to’] = ‘None’
_# gitlab_rails[‘gitlab_email_subject_suffix’] = ‘’

How can I fix this? I also tried giving reconfigure command but that didn’t seem to do anything.