Maybe you should add an area to where you found an error next time, so it can be easier for me to fix it?
But thanks for the report.
I'll investigate that Safari building bug.
I believe the area it's at is right of the Hevah League.
The Safari Zone thing's probably to do with the Header script from the original Ruby game. It's basically tells the game to move the player up once, then seven steps to the right.