3 firebase in one app!

I want to create app inventor application to apply distributed database
I want to add 3 firebase to my project one for users information other for image and last for audio.
This is possible or not, cause I faced problem when add second firebase DB due crash for application.

Do you mean you are trying to access three different firebase projects from your AppInventor app ?

This should not be an issue if you drag out three different firebase components into your app.

Alternatively, you can use the web component to access your firebase project/s:

You say you are storing images and audio in Firebase, I presume you are using Firebase Storage for this ?