Cannot connect to chrome at 127.0.0.1 from chrome not reachable

[bipinkrish]

i am trying to run a Telegram Bot on railway.app via Docker in a headless mode

this is part of my Dockerfile

FROM ubuntu:latest
RUN apt install chromium-browser xvfb -y
CMD ["python3","xxx.py"]

i am getting error like cannot connect to chrome at 127.0.0.1:xxxxx from chrome not reachable...

do i need to expose the port? also i used chromedriver_autoinstaller in my python script

import chromedriver_autoinstaller
chromedriver_autoinstaller.install()

[bipinkrish]

nevermind i fixed it