Captcha is not configured
A persistent alert on login/register when captcha is on for that surface but keys are missing. Same root cause as Captcha enabled but provider not configured; this is the load-time banner, not the submit-time line.
Why this happens
captchaPublicConfigIncomplete for the selected mode. Users cannot complete a valid captcha until keys exist.
Diagnose and fix
1. Fill Captcha provider keys under Settings.
2. Or turn off Captcha on login / registration until keys are ready.
3. Save and hard-refresh the auth pages.
4. Distinct from “complete the captcha” (keys work, user skipped the widget).