After Change Token address getting error

[mkroxm]

const BNB_MAINNET = '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c';
const BUSD_MAINNET = '0x3710cd84e0e331c99c70a34b8c6c136c2cdf91c4';

const prices = {};
const flashswap = new web3.eth.Contract(FlashswapApi, FLASHSWAP_CONTRACT);

const pairs = [
{
name: 'BUSD/BNB pancake>panther',
tokenBorrow: BUSD_MAINNET,
amountTokenPay: 10,

Error msg
error Error: Returned error: execution reverted
at Object.ErrorResponse (C:\not\node_modules\web3-core-helpers\lib\errors.js:28:19)
at Object.callback (C:\not\node_modules\web3-core-requestmanager\lib\index.js:303:36)
at C:\not\node_modules\web3-providers-ws\lib\index.js:114:45
at Array.forEach ()
at WebsocketProvider._onMessage (C:\not\node_modules\web3-providers-ws\lib\index.js:102:69)
at W3CWebSocket._dispatchEvent [as dispatchEvent] (C:\not\node_modules\yaeti\lib\EventTarget.js:115:12)
at W3CWebSocket.onMessage (C:\not\node_modules\websocket\lib\W3CWebSocket.js:234:14)
at WebSocketConnection. (C:\not\node_modules\websocket\lib\W3CWebSocket.js:205:19)
at WebSocketConnection.emit (events.js:376:20)
at WebSocketConnection.processFrame (C:\not\node_modules\websocket\lib\WebSocketConnection.js:554:26)
at C:\not\node_modules\websocket\lib\WebSocketConnection.js:323:40
at processTicksAndRejections (internal/process/task_queues.js:77:11) {
data: null