Peter I am not sure why but I am using version 3.3 ( 6035) and when I try to back up its is saying
I am using a free version I joined and am not sure why my email is firstname.lastname@example.org
help I have a gig tonight
You need to purchase the "Full Version" feature in the In App Purchases to be able to create backups. If you already purchased it, you can restore the full version features by opening the Settings tab, selecting In App Purchases and tapping on Restore Purchases.