Hello,

I created a OIDC identity provider with a client using salesforce to manage identities and accesses
When I click on the IDP (on the login page) I'm well redirected to the webpage of the client (login page from salesforce), I enter the credentials and click connect => An error appears "We're sorry... An internal server error has occurred"

Looking in the log, I find the following error : ERROR [org.keycloak.broker.oidc.AbstractOAuth2IdentityProvider] (default task-23) Failed to make identity provider oauth callback: org.keycloak.jose.jws.JWSInputException: java.lang.RuntimeException: Illegal base64url string!
P.S : sometimes the error is just ERROR [org.keycloak.services.error.KeycloakErrorHandler] (default task-23) Uncaught server error: java.lang.NullPointerException

Any idea please ? I tested many configurations but no one helped me fix this issue

I remain available for any additional information. This is really blocking..