After some time, the Attractions and Suppliers you have will sometimes be broken and need repairing. While they're broken, you can't claim the rewards they provide and there will be fewer visitors!

Fixing broken attractions should be a number one priority!

Luckily, this is very easy, as long as you have the necessary Blueprints!

Alternatively, you can also spend Gems to repair all of them at the same via the Dashboard

Every characters have an action to obtain Blueprints. So be sure to always keep some of them in your inventory at all times.