Can i restart a group that has been shut down

Tried searching for this in the FAQ, couldnt find the relevant thread.
I created a User Group and for a few weeks, couldnt start work on it. The Emails were sent to Spam and missed the reminders.
Can I reactivate the Group that has been shut down?

This is a bit urgent.
Regards

A free Discourse site? I think you might have to email team@discourse.org, but it might not be recoverable.