Keycloak integration with SENTRY service with LDAP user federation

Can someone help me with advice on setting up SSO SAML authorization for the Sentry service in keucloak?

The situation is that keycloak is an intermediary between LDAP AD and Sentry.
In keycloak I create a new realm, in the user federation section I select LDAP and enter the LDAP server parameters and successfully pass the authorization check.

Next, when I enter a link to metadata from keycloak in sentry I get an Invalid Request error

I see this error in the keycloak logs, and I don’t know what to do about it, I’ve already tried all possible options

18:21:16,415 WARN  [org.keycloak.events] (default task-2809) type=LOGIN_ERROR, realmId=sentry-test, clientId=null, userId=null, ipAddress=keycloak.domain.com, error=client_not_found, reason=Cannot_match_source_hash
18:21:16,575 WARN  [org.keycloak.events] (default task-2809) type=LOGIN_ERROR, realmId=sentry-test, clientId=null, userId=null, ipAddress=keycloak.domain.com, error=client_not_found, reason=Cannot_match_source_has