If you pass the revelation check can you move or explore? Or is the card saying no matter if you pass or fail you cannot move or explore.

The "You cannot move or explore." part is a constant effect which is only active while Lost in the Wilds is in your threat area (there are 3 abilities on this card, each in its own paragraph: a revelation effect, a constant effect and a forced effect). If you succeed on the test, you just discard the treachery and you can do what you want.