I need help with something on my Ruby hack. I changed one of the buildings in Oldale town, (Map 2.0) into a one-room cave, and everything was fine. However, when I went into a house in Petalburg (8.2), the inside of the house was the same as that cave, but with the people inside. I changed 8.2 back into a house myself by re-mapping it, and afterwards, it made 2.0 inaccessible. When I try walking into the cave that is 2.0, my screen goes black and I can't move/leave/etc. What do I do?