WooCommerce Subscriptions Problem

I have the WooCommerce subscriptions set up via the core plugin – the setting in the payments panel to do subscriptions.

It was set up and worked okay, and then in one of the recent updates that setting came unchecked. This caused the subscriptions to break — when I re-checked it, all of the existing subscriptions were no longer active. So in order to get the customers back on track they had to actively re-purchase.

How can I prevent this from happening again?