error with koa
```js
// initMiddleware.mjs
const cabin = new Cabin();
app.use(cabin.middleware);

// log of error
.../node_modules/normalize-package-data/lib/fixer.js:191
      throw new Error('Invalid version: "'+ data.version + '"')

Error: Invalid version: "0"
    at Object.fixVersionField (.../node_modules/normalize-package-data/lib/fixer.js:191:13)
    at .../node_modules/normalize-package-data/lib/normalize.js:32:38
    at Array.forEach (<anonymous>)
    at normalize (.../node_modules/normalize-package-data/lib/normalize.js:31:15)
    at AsyncFunction.module.exports.sync (.../node_modules/read-pkg/index.js:37:36)
    at AsyncFunction.module.exports.sync (.../node_modules/read-pkg-up/index.js:27:24)
    at parseAppInfo (.../node_modules/parse-app-info/lib/index.js:62:33)
    at new Axe (.../node_modules/axe/lib/index.js:114:69)
    at new Cabin (.../node_modules/cabin/lib/index.js:66:75)
    at file://.../app/api/middleware/initMiddleware.mjs:8:15
```