Error: Returned error: execution reverted / Uniswap Js Bot

Question

I want to work with the price-bot by DAPP University, here is the github repo: https://github.com/dappuniversity/price-bot When I run index.js the following error occures:

Error: Returned error: execution reverted
    at Object.ErrorResponse (C:\Users\User\Desktop\Mehr\Development\Web3.0\Arbitrage\DAPP-University\price-bot\node_modules\web3-core-helpers\lib\errors.js:28:19)
    at C:\Users\User\Desktop\Mehr\Development\Web3.0\Arbitrage\DAPP-University\price-bot\node_modules\web3-core-requestmanager\lib\index.js:300:36
    at C:\Users\User\Desktop\Mehr\Development\Web3.0\Arbitrage\DAPP-University\price-bot\node_modules\web3-providers-http\lib\index.js:127:13
    at processTicksAndRejections (node:internal/process/task_queues:96:5) {
  data: null
}

I have no idea and did some reaseach but found nothing, I would be very grateful If someone coud tell where the problem is. Thanks