The swinging icons in front of buildings mean that
you do not have tenants - which mean no income.
YOu need to attract them with more entertainment
etc.
The reason it won't let you proceed is because
you haven't bought the correct improvement -
check the upgrades (should be an arrow in the
bottom left, if showing you must purchase the item
shown in the picture).
when it says buy a catamaran twice it's just a
mistake.. look at the simbols(it should be a hotel
or a motel, don't remember).. And when it
froze I hit refresh button, let i load and click
play... it will let you continue where you were