Ugh. I feel bad few steps closer to finishing the course and then this happened. 
anyone can help me?
Green Arroow - I have dealt with this before and let me tell you that that don’t set the PS execution policy to unrestricted. It is unsecure, instead use the RemoteSigned execution policy that is recommended by many devs. I found this article helpful - PowerShell: Running Scripts is Disabled on this system » Prajwal Desai