Supervisorctl restart frappe: frappe: ERROR (no such group)

Please check your Bench version

bench --version

If it is above 5.12.0 then please downgrade your version to 5.12.0 using the following command

sudo pip3 install frappe-bench==5.12.0

There is something causing issues with the latest version of the bench. So as long that is not fixed you can use the old version.
I hope this helps.