Ok , im trying to discover the whole map but at 30% it always tell me that im lost and it make the map goes all black ... Im a litte mad about this , is it normal?

Getting totally lost and forgetting the surroundings is an old random event that can happen sometimes. But I think it was implemented by the time when you couldn't even recall whole map of the game, and the map also was signficantly smaller. Ok, so now it must be only annoying - I'll remove the feature. Thanks for reporting.

wooo, no more wasted exploring!