There are now levels with extra goals, which are marked with special icons. To complete those levels, you need to do more than just earn a certain number of coins. There are other conditions to meet:

Good Mood Food: no customers can be in bad moods;
Super Service: all customers must receive their orders;
Utter Delight: serve a set number of customers with full mood meters;
Where There's Smoke: avoid burning dishes;
Sustainable Dining: don't throw away any food.

Stay Hydrated:
serve a certain number of drinks to customers.
Hearty Bonanza: serve a certain number of main dishes to customers.
Have a Bite: serve a certain number of snacks to customers.
Packed to the Gills: serve a certain number of customers.
Hospitable Restaurant: serve a certain number of special customers.
Right in the Heart: collect a certain number of hearts.
Jack of All Trades: complete a certain number of combo orders.

If you are having trouble, try upgrading the interior of your kitchen or using boosters!

If you fail a level with an extra goal (Super Service, Where There's Smoke, Good Mood Food, or Sustainable Dining), then you can use the Second Chance booster to continue playing.