Could be an issue with Lifpay. I just changed my LN address to my Minibits one. You can try it again if you want.
Discussion
I think that just worked!
It worked. Lifpay had some kind of "service error" but it's back up now.
Ugh. Means you missed out on potential zaps. I have my receiving address as a npub.cash account which to my knowledge has never gone down and keeps track of all zaps and I scoop them up via my cashu.me wallet each time it opens.