Unable to dumpprivkey on Bitcoin core v23

Hi Guys, I installed bitcoin core v23 from ths site, installed it successfully and created a btc wallet.
I want to retrieve the private key of the address using tge dumpprivkey command but it keeps failing,

Steps taken:

1. Ran the walletpassphrase command and it was successful.

2. ran dumpprivkey but it was not successful, got the error. I have somne BTC in it and need the privatekeys to be able to spend it.

These commands run properly on v22 but thesame process does not work in v23. I urgently need assistance.

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