Unhandled Rejection (ReferenceError): Stats is not defined

[OmegaWulf]

Hi, I have yet to get appfairy working. Right now this is the error I'm blocked on:
Unhandled Rejection (ReferenceError): Stats is not defined

I followed the instructions on the blog. When I refresh the site (localhost), I can see my website for a split second and then I see the error screen.

For context, I am a mobile developer and am very junior to React. Not sure If something messed up with appfairy or something is wrong with configuration.

Any help or context on this is greatly appreciated.

[OmegaWulf]