I’m on iOS and Visualeditor doesn’t work, I cannot type anything!
I believe that Visual Editor isn't supported on Safari (well, that's what it told me), so you'll either have to switch to another device, or use a different edit mode, sorry.
It is a bit odd that it wouldn't automatically send you to the classic editor. Supposedly, Wikia detects whether or not your device can support VisualEditor.
Normally, you have to be on the computer to use visual mode.