Internet Could not verify this certificate because it has expired?

When you encounter a message stating that the internet could not verify a certificate because it has expired, it means that the SSL/TLS certificate used by a website is no longer valid. Certificates have a set validity period, and once they expire, browsers will flag the site as potentially insecure. This is a security measure to protect users from potential threats. To resolve this, the website's administrator needs to renew the certificate to restore secure access.