requestFDValueTransferPaidByUser 오류 문의

from: ‘aaa’,
to: ‘bbb’,
value: ‘100000000000000000’,
gas: 25000,
feeRatio: 99,
feePayer: ‘0x66335cd0BC5b1A6d9C1ec7B2Bd107B124581E1aE’,
submit: true
triggerUncaughtException(err, true /* fromPromise */);

[UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason “#”.] {

Node.js v17.0.1

이런 오류가 발생하고 있는데요. 어떤 문제일까요?
아래는 소스입니다.

async sendKlay(from, to, value, nonce){
const vx = {
from: from,
to: to,
value: this.convertToPeb(value),
gas: 25000,
feeRatio: 99,
feePayer: this.feePayer,
submit: true
const ret = await this.caver.kas.wallet.requestFDValueTransferPaidByUser(vx)
console.log(" >>>>>>>>>>> ret >>>>>>>>>>>>>>> ")


await가 있는 구문을 try-catch로 감싸서 에러 내용을 확인해 보시기 바랍니다.