Add to Cart - Wrong attributes

[broth3rhood]

Hi ,

 

I have a problem about adding a product that has a attribute named Renk (Color) to the shopping cart. No matter which attributes i select , when i click "add to cart" ,  product is added with default attribute. 

 

Example : 

 

http://www.bonitogift.com/tr/home/65-kus-desenli-hesap-takip-defteri-.html

 

When i select Pembe as Renk Attribute , it is added with Yeşil (which is default).

 

How can i solve this problem ?

 

Thank you.