1) Please follow this article to update the plugin – https://xstore.helpscoutdocs.com/article/37-plugins-update Read more – https://xstore.helpscoutdocs.com/article/38-activation-and-purchase-codes
2) We were able to open your site, but can’t access dashboard – https://prnt.sc/qaavi6
Please let us know versions of the theme, core, and wishlist + screenshots of your settings for the wishlist. The latest version of XStore should be fully compatible with the latest version of the wishlist plugin. Right now, we cant reproduce the problem on our test site.
Waiting for your reply.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.