Variation product price doesn't show update amount

Please post a link to the page. An image doesn’t really give enough information to be able to help you.

Hi lorro, thank you.
here it is: https://www.bigsardinia.it/wpshop/shop/tipici-spagnoli/delizius-deluxe-iberian-jabugo-acorn-shoulder-ham-variable/

Check that you have entered either a regular price or a sale price at Admin page > Products > (this-product) > Product Data section > Variations tab > (this-variation), for both variations.

Hi lorro, thank for helping me.
Yes, i set a regual price for both variations as you can see here https://s3.postimg.org/n025420xv/Schermata_2015_01_16_alle_18_54_53.png

Did you check that your theme and plugins are up-to-date? If updating, take a backup first.

Temporarily deactivate all plugins except WooCommerce. Does that solve this problem?

Thank you so much, it was a Wholesale Plugin..