yarpkg throws error at start

[soredake]

Kubuntu 20.04

❯ yarnpkg
internal/modules/cjs/loader.js:883
  throw err;
  ^

Error: Cannot find module 'babel-runtime/helpers/asyncToGenerator'
Require stack:
- /usr/share/nodejs/yarn/lib/cli/index.js
- /usr/share/nodejs/yarn/bin/yarn.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)
    at Function.Module._load (internal/modules/cjs/loader.js:725:27)
    at Module.require (internal/modules/cjs/loader.js:952:19)
    at require (internal/modules/cjs/helpers.js:88:18)
    at _load_asyncToGenerator (/usr/share/nodejs/yarn/lib/cli/index.js:17:54)
    at /usr/share/nodejs/yarn/lib/cli/index.js:21:41
    at Object.<anonymous> (/usr/share/nodejs/yarn/lib/cli/index.js:605:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
    at Module.load (internal/modules/cjs/loader.js:928:32) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/usr/share/nodejs/yarn/lib/cli/index.js',
    '/usr/share/nodejs/yarn/bin/yarn.js'
  ]
}