What does it mean server certificate expired. How do you overcome it?

A "server certificate expired" message indicates that the SSL/TLS certificate used to secure communications between a server and a client has reached its validity period and is no longer trustworthy. To overcome this issue, the server administrator should obtain a new certificate from a trusted Certificate Authority (CA) and install it on the server. Additionally, it’s important to ensure that future certificates are renewed before they expire to maintain secure connections. Regular monitoring of certificate expiration dates can help prevent this issue from occurring.