Can't call makeSTXTokenTransfer & makeContractCall due to "NotEnoughFunds" Error

[hecool108]

Hey guys
I was trying to call a contract deployed on regtest,
here is my code:

export async function ccDemoCallPublic(senderKey) {

  const txOptions = {
    contractAddress: 'ST36TRBFNKPB1TQT13S6PMPFFW32TD7A3NVBXNAW2',
    contractName: 'counter',
    functionName: 'increment',
    functionArgs: [],
    senderKey,
    validateWithAbi: true,
    network: regNetwork,
    // sponsored: true,
    // postConditions,
    anchorMode: AnchorMode.Any,
  };
  const transaction = await makeContractCall(txOptions);
  console.log('transaction',transaction);
  return broadcastTransaction(transaction, regNetwork);
}

The senderKey came from @stacks/connect-react UserSession's 'appPrivateKey'
Then I received this.

{
    "error": "transaction rejected",
    "reason": "NotEnoughFunds",
    "reason_data": {
        "actual": "0x00000000000000000000000000000000",
        "expected": "0x00000000000000000000000000003101"
    },
    "txid": "c43f1517c320dc297d9d19367fc9dea36a953d79e340edbe3acc3493de10b73c"
}

Can anyone help with this?

[hecool108]

My fault, I mistook senderKey to appPrivateKey,and due to the community's expert suggestion. I changed my way to use chrome web extension wallet to do contract calls, which is more secured and meaningful.
The way will be, us openContractCall, from @stacks/connect package.
if anyone meets "Invalid Buffer provided in SmartBufferOptions " error. Pls take a look at :
hirosystems/connect#150