No. Sorry. I can’t do anything about it.
I didn’t find any solution.
When switching to production did you go through the Deploy to Production steps? 
Yes, I’ve followed these steps and also swapped out the sandbox location id with the production location id. That isn’t listed in the Production steps but I assume that was supposed to be replaced as well.
Is this with our example using localhost? If so what command are you using to start the server? Is it npm run dev or npm start? For production you’ll need to run npm start
In the screenshot I attached previously you’ll see that I am running npm start and getting the error. I’m following the steps outlined in the Take a Card Payment walkthrough.
This is fixed now if you pull a new version of the Quickstart.