Why Wix sites fail at IP Canonicalization Test? Test form: "If multiple domains get registered under single IP, bots label as duplicates?"

This result came on https://1.growthrobotics.com test. "Website failed IP Canonicalization Test.

If multiple domain names get registered under single IP address, the search bots can label other sites as duplicates; this is IP canonicalization. To solve this use redirects." But what to redirect and where...I have only one website on my account on wix and only one domain.