Hi @clsa, If you're talking about the certificate errors under Admin > HTTPS, I wouldn't worry about those. An application does not need to validate its own certificate; it's only used to encrypt/decrypt the traffic. The server transmits a copy of the certificate (without the private key), and the client validates the certificate before transmitting data. Without getting into too many technical details, the only thing that really matters is if clients can connect to the application (ProGet) using HTTPS or not. There are a lot of reasons that may prevent the application from self-validation and it's not really worth trying to fix, since it's only used on that page to help catch basic errors. Thanks, Steve