It seems that your Identity Provider is sending an error in the SAML Response. To troubleshoot this, please go to the Service Provider Setup tab of the SAML SP Plugin. Click on the Test Configuration and review the configuration result window. Ensure that the Attribute Mapping has been done correctly and verify that the X.509 Certificate Value is accurate.
If the issue persists, please get in touch with us at joomlasupport@xecurify.com or click here to contact us for support. Kindly share your use case with us to assist you better.
