Error while executing RunShellScript from Azure

I am creating a new Linux VM from source VM and executing the command to change host file of my new VM. I am running the below command from azure:

**az vm run-command invoke -g myResourceGroup -n myVm --command-id RunShellScript --scripts "updatehost.sh"**

then sometimes it works and sometimes it gives an error:

**VM agent on VM '' has not reported latest status for extension 'RunCommandLinux'. Please verify the VM.**

Please help me out on this.

Thanks and Regards
Harsh