I've tried my third game and yet i havent managed to sell a single Pizza. I've a store in Berlin - Charlottenburg, i've 6 standard pizzas with ratings of 96 and 97%, my prices are between 5 and 9, all pizzas are on the menu, my store is open, i've a cook and a waiter, but there is still not a single customer. Not even advertisments help.

What did i wrong, to have not a single customer?

Hello there, do you have bought a pizza oven and something on the ground (carpet or tilework)? Did you add the standard recipes to the selling-menue? If you did all of this, you should reinstall the game and try out the Sheik-character, who starts with 100.000$, hire a manager and enable all of his options to true/yes. If you still don't sell a single pizza, something else with your game is broken.