Cannot log in to this site #836

I get repeatable errors trying to authenticate. This is what I see in the logs.

What is most strange is that when I first fired up the site it worked fine. Now I can't get it to work at all and no idea how to fix it. I even tried redploying but no go.

stdout F fail: Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler[52]
stdout F Message contains error: 'invalid_request', error_description: 'Invalid redirect_uri', error_uri: 'error_uri is null', status code '400'.
stdout F fail: Microsoft.AspNetCore.Server.Kestrel[13]
stdout F Connection id "0HNCJT5FO1KC4", Request id "0HNCJT5FO1KC4:00000007": An unhandled exception was thrown by the application.
stdout F Microsoft.IdentityModel.Protocols.OpenIdConnect.OpenIdConnectProtocolException: Message contains error: 'invalid_request', error_description: 'Invalid redirect_uri', error_uri: 'error_uri is null'.
stdout F at Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler.GetPushedAuthorizationRequestUri(HttpResponseMessage parResponseMessage)
stdout F at Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler.PushAuthorizationRequest(OpenIdConnectMessage authorizeRequest, AuthenticationProperties properties)
stdout F at Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler.HandleChallengeAsyncInternal(AuthenticationProperties properties)
stdout F at Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler.HandleChallengeAsync(AuthenticationProperties properties)
stdout F at Microsoft.AspNetCore.Authentication.AuthenticationHandler`1.ChallengeAsync(AuthenticationProperties properties)
stdout F at Microsoft.AspNetCore.Authentication.AuthenticationService.ChallengeAsync(HttpContext context, String scheme, AuthenticationProperties properties)
stdout F at Microsoft.AspNetCore.Authorization.Policy.AuthorizationMiddlewareResultHandler.<>c__DisplayClass0_0.<g__Handle|0>d.MoveNext()