I see you're still struggling.

Make sure that the name in the json file is lowercase. Also put the pubkey in the json file in hex format, not npub...

Hm...what else?

This video might also help.

Dej vědět do zpráv kdyby si to chtěl nějak víc pořešit.

https://www.youtube.com/watch?v=uzdHdkKwPYE&ab_channel=theBTCcourse