My planner group is missing or deleted

[DReyes1979]

How can i restore the plan and its buckets when an alert stating the planner is missing or deleted appears?

[#2]

If the group was deleted you can restore it in the Admin portal:

https://docs.microsoft.com/en/microsoft-365/admin/create-groups/restore-deleted-group?view=o365-worl...

[#3]

Is it a similar, solved problem?
https://techcommunity.microsoft.com/t5/planner/the-plan-is-missing-or-deleted/m-p/325243/highlight/t...