The link you clicked was
supposed to open the Priiv app.

Priiv is available on iPhone, iPad, and new M1 Macs.

Try your link again on iOS
or install Priiv on your M1 Mac.

What should I do next?

Open the email or click the social media link on iOS, or If you have an M1 Mac - install Priiv from the App Store and then click the link again.