404: Page Not Found on "Visit our sign-up page..."

With Testflight installed and 1Password appearing in it and then clicking the link "Visit our sign-up page..." in the Beta Invite email (in iOS Gmail app), I a get 404: Page Not Found on the 1Password website.

---

1Password Version: 8.10.9 (81009045)
Extension Version: Not Provided
OS Version: iOS 16.5.1 (c)
Browser: Gmail app