Registry DNS name is already in use

Hi,

I am facing below error while creating the Azure container registry , Deleted all the resource groups and created the fresh one still facing same error 

Error: The registry DNS name sandyacr.azurecr.io is already in use. You can check if the name is already claimed using following API: https://docs.microsoft.com/en-us/rest/api/containerregistry/registries/checknameavailability