How can I make the Island of Lesbos settlement-compatable???

[SSJVegetaTrunks]

The Island of Lesbos, a pretty small island south of Asia Minor... I am trying to make a settlement on it, but it keeps crashing. Is it impossible to put a settlement on here without changing the ground type or something? How can I make it possible to add a city to?

Oh, and if you know how to do the "show_err" thing, that could help me, too. Where do I add "show_err" into the shortcut thing??

Please answer as quick as you can, and thanks in advance!

EDIT: In case it helps someone help me, I'd just like to say that when I'm saying it crashes, it's crashing to the game menu, not the desktop.

2ND EDIT: Oh, and do I have to delete "map.rwm" from the "base" folder?