OK my bad, I had not approved the connection on pi-hole.

I just rebuilt my magic mirror, I had to swap memory cards, I HAD used a 64gb card, so I rebuilt on a 16gb
I was able to view from another machine on the network as well as the screen attached to the PI, but now I get the title, a black screen & just loading circle in chrome.
The Pi’s screen is working great.
Any suggestions on what I’ve missed?