Please do-not shout by writing in all caps. (I don't know a more nicer way of saying this).
Have you contacted myfxBook about your password?
Perhaps currently your connection is a little slow.
Mt4 have changed recently in terms of .dll myfxbook would be responsible for updating their codes to ensure that it functions properly with the new mt4.
If you're talking about password from your broker ... then contact your broker.