We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
#4996 - Admin Zone > eCommerce > Invoices always takes you to the create invoice page even if you have existing invoices
The UI cannot/will-not take you to the do-next manager that allows a selection of invoice activities.