Level 125 states I have to decorate before I move on. What does that mean?

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I’m on level 30 - it says to visit storage. I have redecorated. How..

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To proceed, you need more Flowers added to your island to proceed. How many more you need is indicated on the main island screen, top right, next to the Flower icon. You can acquire Flowers in one of the these ways: buy decoration (which is what the game is telling you to do), renovate landmark, upgrade 3x3 building, or get from Jack's delivery. If you buy decoration, the Flowers will not count until after construction is complete and the red ribbon is removed.