Configuring YubiKey for GPG and U2F

I used autoslot for my pgp key and i added an openssh key with auto slot as well Check Which GPG Slots Are In Use · SSH, OpenPGP, GPG 6, 407

gpg: reader slot 0: not connected gpg: reader slot 0: active protocol: T1 gpg: slot 0: ATR=3B DA 18 FF 81 B1 FE 75 1F 03 00 31 C5 73 C0 01

4k slot does not work with OpenPGP card: $ gpg2 --card-status gpg slot=0 DBG: chan_5 -> OK

appg slot pg Really sign? y gpg: signing failed: No secret key gpg it looks to me like you got a key on your Signature key slot which is not