Node Red (IBM Cloud) + Firebase palette

I'm using Node Red by IBM Cloud, when I installed the Firebase palette, it isn't recognised, I try uninstall, and I got the message: Error: unrecognised module: node-red-contrib-firebase.
Take a look in the picture to understand better:

Please, help me!

Please don't start a second thread for the same subject. Post a message on the original thread with any additional information you have.

I will close this thread to avoid confusion.