The reason why this error is getting thrown is because of the Organization URL. This connection property should start with https:// so the correct format in your case would be https://<organisationName>.crm.dynamics.com.
This error then leads to the scope issue which due to your URL, throws an invalid URI form, presented as <organisationName>.crm.dynamics.com/user_impersonation instead of https://<organisationName>.crm.dynamics.com/user_impersonation. To fix this error kindly change the Organization URL connection property value.
Please reach out to [email protected] if this does not resolve the problem for you.
