Issues with OpenIDConnect

Our Configuration:

CallbackPath: /auth/signin-oidc
ClientId: ***
ClientSecret: ***
Resource:
Authority: https://???.???.de/realms/***
ResponseType: code
UseTokenLifeTime: true
RequireMfa:
GetClaimsFromUserInfoEndp: true
Scopes: openid profile groups
CorrelationsCookieSameSite:

The Error:

An Error Occured. Invalid URI: The format of the URI could not be determined.
at System.Uri.CreatThis(String uri, Boolean dontEscape, UriKind urikind, uri……….

Product: PowerShell Universal
Version: 5.0.5

IdentityProvider: Keycloak

Thank you for your help