Hi. (I'm a non-native speaker of English. Please forgive my English.)
I upgraded BackWPup to 3.0.2 from 2.1.17, and "No MySQLi extension found" errors occurred while backing up WP database.
I'm using web hosting service without MySQLi extension installed.
I asked the hosting provider to install MySQLi, but they replied that for now, they're not planning it.
If possible, I'd like to keep using BackWPup.