Instead of an error zaps should just go to the user's npub.cash address. Could also be a user setting on my side. What do you think nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z? https://image.nostr.build/91acd44e5811ac2eb37df59e44ded48ead4fc993a047f08599167677b1fc668e.jpg