Vue 3 Migration browser error

[harshOpensource]

Hey Guys, I have migrated a production app to the vue 3 with migration build, I have fixed all the compillation errors on the console and app is running fine but I'm getting error on the browser. I have tried everything but it is not working.

Can anyone please help in fixing the error

vue config file

const webpack = require('webpack');
const { VueLoaderPlugin } = require('vue-loader');

module.exports = {
  lintOnSave: false,
  devServer: {
    open: true,
  },
  publicPath: './',
  chainWebpack: (config) => {
    // GraphQL Loader
    config.module
      .rule('graphql')
      .test(/\.(graphql|gql)$/)
      .use('graphql-tag/loader')
      .loader('graphql-tag/loader')
      .end();
  },
  configureWebpack: {
    resolve: {
      fallback: {
        process: require.resolve('process/browser'),
        zlib: require.resolve('browserify-zlib'),
        stream: require.resolve('stream-browserify'),
        util: require.resolve('util'),
        buffer: require.resolve('buffer'),
        asset: require.resolve('assert'),
        crypto: require.resolve('crypto-browserify'),
        https: require.resolve('https-browserify'),
        http: require.resolve('stream-http'),
        vm: require.resolve('vm-browserify'),
      },
      alias: {
        vue: '@vue/compat',
      },
    },
    plugins: [
      new VueLoaderPlugin(),
      new webpack.ProvidePlugin({
        Buffer: ['buffer', 'Buffer'],
        process: 'process/browser',
      }),
      new webpack.LoaderOptionsPlugin({
        // test: /\.xxx$/, // may apply this only for some modules
        options: {
          loaders: [
            {
              test: /\.(graphql|gql)$/,
              exclude: /node_modules/,
              loader: 'graphql-tag/loader',
            },
            {
              test: /\.(png)$/,
              loader: 'url-loader',
              options: {
                esModule: false,
              },
            },
            {
              test: /\.vue$/,
              loader: 'vue-loader',
              options: {
                compilerOptions: {
                  compatConfig: {
                    MODE: 2,
                  },
                },
              },
            },
          ],
        },
      }),
    ],
  },
};