Update/fix for some scripts need testing

@nefrontheone well it is not my code.. the code already has a check (wrong check) to close the window if it can't calculate next mcv costs.. doing what you say require more modding and is useless... why have the next mcv if you can't do any level up? also my idea of disabling it because it will continue trying to calculate costs (running code every tot seconds to update a window with limit message). disabling the check in preferences is the best choice according to me