To resolve the deadlock, the following steps are recommended:
A less common but possible cause: Your browser has stored a corrupted session cookie or cached version of the registration page. This can break the token handshake required to submit the "agree" action.
If you have disabled your VPN, switched browsers, turned off ad blockers, and are still seeing the error, the issue may be out of your hands.
The "I Agree" button is not a simple HTML link. It triggers a JavaScript-based validation check that communicates with the server. If you have:
...the validation token will not generate properly, and the server will reject the agreement.
The CS.RIN anti-spam system blocks certain "headless" browsers and generic mobile browsers.
Subject: Unable to accept terms for RIN [RIN_NUMBER] — user blocked
Body: