Crazy Cake 2

Crazy Cakes 2, level 6 stops working after I start cooking the strawberry and blueberry. It only registers that I've served one customer and it's never the dwarf. I serve once and then I can't serve anyone after that. Every time I click on the serving bar it won't register that click. The time runs out and the knight or the dwarf leaves because they weren't served. please fix this, I can't get past this level because of this.