OpenPGP Cards have three key slots. If you choose to have three subkeys on your Card you need at least one being able to certificate to do what you want to.
Most people will probably copy the master key (which should have ‘SC’ ability) to the first slot and add two subkeys (one with ‘E’ and one with ‘A’) to the second and third slot.
Have a look at your output of ‘gpg card-status’ and see where ‘1FC7283A’ is situated (can’t see on the output above ). I guess you will see then, that it is on the Signature Slot (makes most sense). On this slot you probably want to have your master key or a new subkey which actually have ‘S’ and ‘C’ ability.
To be honest I am not 100% sure, but in my understandig this should not make a difference for prior actions you did. But I am not sure. But you may have to update you public key on keyserver if you use such thing and if you choose to create a new subkey. When using the master key instead of the subkey now in use, you should be fine. You probably want to study this instructions.
I don’t dare to give you a complete instruction, as I am not sure, what your whole situation is (e. g. do you have backups and how etc.), but as I see it you want to use ‘gpg --key-edit’ -> ‘toggle’ -> ‘keytocard’ to move the master key to the Signature Slot of the card. Be aware that the key on disk got deleted by gpg afterwards, so have a backup if you need one!
I am sorry, that this is not more straightforward, but that’s the way it currently is for every person who wants to use a OpenPGP Card or other smartcard.