Webex meeting Single sing on failed

[Alberto.Tovar]

since 2 days ago i have this problem when i'm trying to login on webex meeting:

I hope you can help me! :D

[mtabrez]

https://help.webex.com/en-us/WBX68460/What-are-the-SAML-Error-Codes

[Mike_Brezicky]

Which service are you setup for SSO? ADFS, Azure, etc.
Check to see if the cert may have expired, and see if you can reimport the Idp metadata to Control hub.