Bake A Cake
Cup cake holders, paraffin taste

I went to bake a bake on Wednesday to buy cup cake holders for my sons bithday.
I baked some cakes for my child's birthday yesterday. When I tasted one. It stasted like paraffin, it is definitely the paper cup cake holders I bought from from this supplier.
I can't send this to my child's school, I am afraid the children will get ill from this.
Is this the products that bake a cake sell?? I started to get headaches after eatinh them!