You can rebroadcast the transaction but, theoretically, you can not perform CPFP on a "local" transaction because the UTXOs you are trying to spend do not exist, according to the servers you wallet is connected to. First, you need to connect your wallet to servers that still have the transaction in their mempool and you should see its status as "unconfirmed" before you can perform CPFP.
Keep in mind that this means you will have to pay more in fees in order to pay enough for the original transaction and its child.