Captcha is enabled but the selected provider is missing a site key in settings or environment
Support/contact flow returned support.captchaSiteKeyMissing when captcha is on but the chosen provider has no site key. Related Help: Captcha enabled but not configured / Captcha enabled but provider not configured.
Why this happens
Admin enabled captcha (tickets/contact/etc.) without completing Captcha provider keys (settings or env).
Diagnose and fix
1. Admin → Settings: select provider and save site/secret keys (reCAPTCHA v2 keys, hCaptcha keys, etc.).
2. Or temporarily disable captcha on that surface.
3. See Captcha on tickets / Captcha on contact.
4. Visitors: contact the site admin — you cannot fix missing keys yourself.