unable to login to websupervisor through browser

Over the weekend we were locked out of our websupervisor because of a Java security issue. The browser prompted us with Failed to validate certificate. The application will not be executed. Name: WbApplet

java.security.cert.CertificateException:java.secur ity.cert.CertPathValidatorException:Responseisunre liable:its validity interval is out of date

I cannot find the certificate that is out of date.

Does anyone have a solution to this problem?