Hello @Anand A , Thanks for using Microsoft Q&A Platform.
May I know the pricing tier of the resource? Also please share information regarding the API version of the project you are working by navigating to the left-hand pane (settings button) and count of the documents have you labeled?
Try to check all these details and make sure to add enough documents and labels to train a model. As per my knowledge these reasons might have caused that issue. However, we can help you if we hear more information.
If the issue still continues, please let us know we can help in raising the support ticket.
Regards,
Vasavi