I'm an admin for the site, so I just converted the comment to an answer and accepted it.
@sarnagar Could you please follow up with the exact roles you added to the user account to resolve your issue? This will help other users in the forum have an option to test out for themselves. Thanks!
Check your savedsearches.conf file and see if you have other saved searches named the same as your alert you're trying but perhaps with different spacing. Also try just naming the alert differently.