Promtail is installed but its not working/starting

I have tried setting up promtail on my person ubuntu laptop through different ways and one of the way I have used is - How to setup Promtail in Ubuntu 20.04 | by Sujit Patel | Medium

I am able to install promtail and everything is fine until i start the promtail (sudo systemctl start promtail) and when i check the status (sudo systemctl status promtail) I am getting below message/notification

ā— promtail.service - Promtail service
Loaded: loaded (/etc/systemd/system/promtail.service; enabled; vendor preset: enabled)
Active: activating (auto-restart) (Result: exit-code) since Sat 2024-05-11 17:49:32 IST; 8s ago
Process: 9502 ExecStart=/usr/local/bin/promtail -config.file /etc/promtail/promtail-config.yaml (code=exited, status=1/FAILURE)
Main PID: 9502 (code=exited, status=1/FAILURE)
CPU: 43ms

I need urgent help to fix the issue. Can someone please help/guide me?

Iā€™d recommend trying some of the troubleshooting steps here: Troubleshooting Promtail | Grafana Loki documentation