In my mod, I've made an isle using "drt", "grs", "swr", "dw" textures and 177 to 192 façades. The teleport script goes right, but then when I try to run, there is a black screen... I just can't understand why
Well, the short answer is you messed up. The long answer is I don't know either. Backup your mod (make a copy of it in another directory) and replace your textures with plain grass and remove the facades. See if that works. If it doesn't, it's likely an error with your script.