Looked at the source. They are using the free (and lame) wix. Its an insecure javascript with the wix portal. No site that is using the free wix will run in my browsers due to security restrictions.

SecurityError: The operation is insecure. main-r.js:217

They attempt to use local storage (outside your cookies):
var storage;
if (isAvailable(window.localStorage)) {
storage = window.localStorage;
} else if (isAvailable(window.sessionStorage)) {
storage = window.sessionStorage;
} else {
storage = {
setItem: function () {},
getItem: function () {},
removeItem: function () {}
};
}

This tactic is not secure. Its vulnerable to XSS (cross site scripting).
https://blog.whitehatsec.com/web-storage-security/