No courrier with product

[stefanoqwe]

hi, guy, i have small problem with my website toscanahobby.com. I have already charge product and all work well. But with a random product don't appear courrier choose. The product page detail is the same of old, same weight.

Example product with error https://www.toscanahobby.com/it/collezionismo/5081-mulinello-abu-garcia-706fmu139.html

Product WITHOUT problem https://www.toscanahobby.com/it/mulinelli/1236-mulinello-shimano-nasci-c5000xg-spinning-fcm7-22255207928.html

If i add 2 different product with the item with error, appear courrier but not regular

 

I don't know where is the error.