What does invalid certificate on your DSI mean?

An "invalid certificate" on your DSI (Digital Secure Identifier) typically indicates that the digital certificate used to authenticate a connection is either expired, not trusted, or has been revoked. This can prevent secure communication and may expose your data to security risks. To resolve this issue, you may need to update the certificate, check your device's date and time settings, or install a trusted certificate authority's root certificate. It's important to address this promptly to maintain the integrity and security of your connections.