Without the 6-words, the certificate is incomplete and cannot be used.
It appears you are still performing actions on one of your devices with the account? I see activity from a few minutes ago, assuming that is you. If true - you can go into Anchor and export the private key as a backup, since that key can be imported to any other wallet.
You won’t however be able to use the certificate and won’t have access to your “owner” permission.
I would recommend you create a new account with a proper backup, and move anything of value to the new account using the wallet you currently have loaded.