Error : weight.php on line 32

If the language is english no error found
but if the language is indonesia found this error :

Notice: Undefined index: 2 in F:\wamp\www\opencart_v07.95\library\cart\weight.php on line 32

This error found after klik the button "add to cart"

What can i do ?

Go to admin and from the menu, find Localisation->Weight Class and add descriptive entries for your new language. You should also do this for Order Status and everything else you can find with multi language support.

Thank's before