This warning means the browser can't verify a valid SSL certificate.

1. Check the certificate is installed: in cPanel, open SSL/TLS Status (article 140) and run AutoSSL if the domain isn't covered.
2. Check it hasn't expired: certificates expire; AutoSSL renews automatically, but a purchased certificate may need manual renewal (article 145).
3. Check you're using the right domain: a certificate for yourdomain.co.za won't cover a different domain or some subdomains.
4. Wait for issuance: a brand-new certificate can take a few minutes to activate.

Tip: After fixing it, clear your browser cache (article 199) or try a private window to confirm the warning is gone.