Facing issue while using PDFTron in android

Product:
PDFTron PDF viewer

Product Version:
“com.pdftron:pdftron:9.0.0”
“com.pdftron:tools:9.0.0”

This is the issue facing right now while creating the build in android
Could not HEAD ‘https://pdftron-maven.s3.amazonaws.com/release/com/google/firebase/firebase-bom/28.4.0/firebase-bom-28.4.0.pom’. Received status code 403 from server: Forbidden

Hi, looks like you are missing project repositories. Please kindly follow the integration guide step by step for the correct integration process:

We’ve also got out of box samples for you to run/compare with yours here:

Thanks.