Woocommerce Error Messages and big fonts after upgrading Enfold and Woocommerce

Hello everybody

I’m having an issue with woocommerce products.

After upgrading Enfold to latest version 4.0.3 and woocommerce to 3.0.1

When I go to the products page I see big fonts and an error inside the products cards:

Warning: Missing argument 3 for avia_woocommerce_gallery_thumbnail_description() in /wp-content/themes/enfold/config-woocommerce/config.php on line 1360 Warning: Missing argument 4 for avia_woocommerce_gallery_thumbnail_description() in /wp-content/themes/enfold/config-woocommerce/config.php on line 1360

Could you please have a look at it?

http://www.heart-of-italy.com/testshop

I look forward to your kind reply,
Mauro