I have gotten this message for a several weeks now. Strangely it is from salesForce?
SalesForce Sign-On error
You'll need to contact Member Services to get this resolved. You can find their contact details at the bottom of this site or the main ISC2 site.
@Joro I see that you're receiving an SSO error. Please contact Member Services at email@example.com and include your Member ID. One of our Customer Service Coordinators will be happy to assist!