Azure AD SSO - application not running

[gmcr.cz (GM group & Co, s.r.o.)]

I set up Azure AD SSO. It seems to be working OK.

But when I authenticate and get redirected I have https://something.rozjeto.cz/External/Callback URL in browser and the page shows the message that unexpected error occured.

Any idea what might be wrong?

[gmcr.cz (GM group & Co, s.r.o.)]

After some digging and debuging with @washi with Washi we have found out that the configuration in appsettings.json file must be:

AzureAdLogin: {
ClientId: c1ce42e0-cd5b-410b-885a-5b7819899e9c,|
TenantId: 1a7b87a4-cd85-4e61-ba1b-20fe79ae7f4f,|.
ClaimType: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name|
}

After changing it, everything works just fine.