Trying to Uncle Jim my family with Zeus lightning Wallet using my Umbrel Node. Am following nostr:npub1rxysxnjkhrmqd3ey73dp9n5y5yvyzcs64acc9g0k2epcpwwyya4spvhnp8 great guide however I am getting the following error when trying to create a Custodial session. Can anyone give some guidance on how to fix this?

#bitcoin #plebchain