Until there's full migration script ready for 3.x version, sometimes it is needed to move back to 2.x. Here's how you can do that:
- You will need to remove all the subscriptions and transactions, and then searching the database for everything that contains phrase "rp_sub" and delete all records.
- Also, search the database for "rightpress" - there could be more records to delete. Though make sure that those records are associated with Subscriptio, not any other of our plugins.