Firebase HTML buttons greyed out & Signing up not working

Hello, I am new to using Firebase and maybe I thought somebody could help me out with the problem I have been facing. I started the tutorial on how to authenticate with Firebase yesterday and when I followed all the steps I made it. However when I run my application thru the AI Companion app and the installed app on my phone, the buttons for signing in and other buttons are greyed out except the "Sign Up" button and the "Send a verification e-mail" button too. When I input the e-mail and password and click the "Sign Up" button. It does not do anything. Could somebody please help me out? :confused:

Which tutorial ? This one ?

You may also want to look here for an alternate method:

Yes, this one: Firebase Authentication in App Inventor Using Javascript (

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