SSO using keycloak not working

SSO using keycloak not working

HI I used this link: https://help.zoho.com/portal/en/kb/desk/for-administrators/user-access-and-security/articles/setting-up-saml-single-signon-for-help-center#Keycloak_IDP

In my application, I and using keycloak as the identity provider, and I want to use the Zoho desk. I want that., my user can log in to Zoho without any username and password through my application.
I tried the above link but it is giving me an error.
please provide a solution for it.