Hola! So, there are 2 different encodings of your public key. There’s the one that starts with npub and is called bech32 encoding. Then there’s the hex version. So your hex version is 4cfd02fbafa82ea6099d1e9812e5e088edb46ea4689cd239687d870899c89d1e . If you paste that into nostrplebs.com it should work for you!