Secure connection failed

I am getting error message when I try to log in to my another blog, tethulika.wordpress.com saying secure connection failed, and
The OCSP response is not yet valid (contains a date in the future). (Error code: sec_error_ocsp_future_response).
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem. Alternatively, use the command found in the help menu to report this broken site.
I have seen some discussion on this topic before I did not understand the solution. Can somebody please explain in simpler terms how to fix this problem
Thanks.
Malathi
tethulika.wordpress.com.