Help with Registering Stake Address please

Hi there I am at Section 11 of the How to build a Cardano Stake Pool guide but I am stuck as there appears to be a contradiction

  1. Register your stake address

It says to Create a certificate, stake.cert , using the `stake.vkey but I am told to generate the stake.vkey on my offline computer in an earlier instruction. When I go to run the following command on my block producer node it errors saying that stake.vkey does not exist - does this mean that I transfer the stake.vkey over to the hot machine (block producer node)

cardano-cli shelley stake-address registration-certificate
–stake-verification-key-file stake.vkey
–out-file stake.cert

Any help appreciated and I don’t understand why the catagory drop down is defaulting to Korean - sorry