We have implemented sign up functionality as described in
https://github.com/AzureADSamples/WebApp-MultiTenant-OpenIdConnect-DotNet
It was working fine, but from today morning when we try to do sign up for new customer/tenant we are not getting "Grant Access" page. We are getting below error from azure AD
AADSTS90092: Non-retryable error has occurred.\r\n
Trace ID: b5e2da53-31db-44ee-b1c1-f3aeacc15582\r\nCorrelation ID: 01645982-2b79-4158-893d-6ae63fc4f307\r\nTimestamp: 2015-07-23 06:51:09Z
Any idea how we can resolve it?