Since you’re able to send zaps, I’m assuming you have a bitcoin lightning wallet. In order to receive zaps, you need to fill it in the bitcoin lightning address in your profile (I’m using Damus, but it should be similar for other clients) https://image.nostr.build/861e330712f4ff6e761a7d9748fd76115c0463a636e6c6de5c7c7598ac6f2d2c.jpg