交易错误无效的bignumber字符串（参数=; value＆quot'value =; quot'1.2e＆＃x2B; 21＆quot;

Question

您好，我在转移Morthan 1000busd时在字符串Bignumber上有问题，这是我的传输代码，我不知道我希望有人帮我，谢谢

const transfer = async (fromAddress, toAddress, amount, callback) => {
    if (connected === true) {
      if (chainId !== config.chainId) {
        //56   97
        alert("Please select Biance Smart Chain network!");
        return;
      }
      setIsLoading(true);

      try {
        let tx = await Contract.methods
          .transfer(toAddress, (amount * Math.pow(10, 18)).toString())
          .send({ from: fromAddress, to: toAddress });

       // console.log(tx.events.Transfer.id);
        setIsLoading(false);
        success_transfer();
        callback();
      } catch (error) {
        setIsLoading(false);
        //console.log(error.message);
        error_transfer(error.message);
      }
    } else {
      alert("Please connect to the wallet");
      ConnectWallet();
    }
  };