'gbk' codec can't encode character

[lychees]

I am trying to call this file from an javascript code. But is return the following error:

stdout: D:\Dev\Github\VITS_TXT_to_Audio
Loading model......
段落の視覚的な表現方法
Raw_Text: 段落の視覚的な表現方法
Cleaned_Text: file： output//00001.wav content： 段落の視覚的な表現方法 generate failed
'gbk' codec can't encode character '\u0283' in position 11: illegal multibyte sequence

my code is below:

import { Context, Random, Schema, segment } from 'koishi'
const iconv = require("iconv-lite");

const BASE_URL = 'https://mm.cqu.cc/share/zhifubaodaozhang/mp3/{0}.mp3'

export interface Config {}
const fs = require('fs')
const {promisify} = require("util")

export const name = 'alipay-voice'
export const Config: Schema<Config> = Schema.object({})

function delay(n){
  return new Promise(function(resolve){
      setTimeout(resolve,n*1000);
  });
}

const encoding          = 'cp936';
const binaryEncoding    = 'binary';

function iconvDecode(str = '') {
    return iconv.decode(Buffer.from(str, binaryEncoding), encoding);
}

export function apply(ctx: Context) {
  ctx.command('say <t>')
    .action(async (_, t) => {

      console.log(t)

      let z = await fs.promises.writeFile('../VITS_TXT_to_Audio/model/input.txt', t);

      async function gen() {
        const { spawn } = require('node:child_process');
        const ls = spawn('python', ['../VITS_TXT_to_Audio/txt_to_audio.py'],
          {
            cwd: "D:/Dev/Github/VITS_TXT_to_Audio",
            encoding: "utf8"
          }
        );
        ls.stdout.on('data', (data) => {
          console.log(`stdout: ${iconvDecode(data)}`);
        });
      }
      await gen();
      // await delay(4);
      return segment.audio('file:///D:/Dev/Github/VITS_TXT_to_Audio/output/00001.wav');

    })
}