URLs with ?v=68caa8201064

Hi team, trying to figure out what causes the “version” string in my WooCommerce shop, ex. https://shop.rawfoodforpets.com/?v=68caa8201064. I somehow seem to have gotten rid of these in https://rawfoodforpets.com … but cannot seem to figure out where / how on the Woo installation?

Tx in advance.