Ionic Capacitor 404 eror - inappbrowser is not in the npm registry

Ionic Framework
1

I got an error 404 from trying to install the inappbrowser plugin

npm install @ionic-enterprise/inappbrowser

npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/@ionic-enterprise%2finappbrowser - Not found
npm ERR! 404
npm ERR! 404  '@ionic-enterprise/inappbrowser@latest' is not in the npm registry.
'''

I have also run npm config set registry https://registry.npmjs.org/ but still get the same error