Server Authentication failed using gmail

Hi expert friends,
At work, I need this in the computer to interact with the client. Therefore, I tried to download the Psi in the computer and I install it without any problem. I am almost to the end of setup, in the end I got an error message. I am confused with the error message, what I have to click now. How will I setup the new account? Help please. Thanks.

Server Authentication
The gmail.com certificate failed the authenticity test.
Reason: The hostname does not match the one the certificate was issued to
Continue Details Cancel
