How to solve insufficient funds (Ropsten)?

Question

I have tried adjusting the Gas Limit and GWEI and I get this error. I am using infura and Ropsten. Has anyone any ideas about this?

Code -

        var rawTransaction = {"from":myAddress,
        "gasPrice":web3js.toHex(2*1e9),
        "gasLimit":web3js.toHex(7920027),
        "to":contractAddress,
        "value":"0x0",
        "data":contract.addBonus.getData(bonusType, target, year, month, day, token, bonus, bonusName, ineq),
        "nonce":nounce}

        console.log("raw txn " + rawTransaction);
        //creating tranaction via ethereumjs-tx
        var transaction = new Tx(rawTransaction);
        //signing transaction with private key
        transaction.sign(privateKey);
        //sending transacton via web3js module
    //    web3js.eth.sendRawTransaction('0x'+transaction.serialize().toString('hex'))
    //    .on('transactionHash',console.log);

       var serializedTx = transaction.serialize();

       web3js.eth.sendRawTransaction('0x'+serializedTx.toString('hex'), function(err, hash) {
       if (!err)
          console.log("hash = " + hash);
       else console.log("err = " + err);
       });

I get this error -

err = Error: insufficient funds for gas * price + value

Answer 1

Key was wrong - I corrected the key and now it runs.

Answer 2

This is probably not the case here since you're using Infura, but in case others are seeing this error when submitting transactions to a light node:
If the light node has no peers to ask about chain state, it may return this error since it can't determine the balance of the sender, and thus considers it insufficient.