I was on desktop on the browser, and for whatever reason I had to keep refreshing the page to get the buttons to work. Anyways, I added one mint and my relays, after a couple tries I got the lightning invoice to come up.

I paid it, but I think tha app glitched and the tokens from the mint didn't pass through the app to the relays. I dunno though 🤔 I didn't try again lol