Hi Nitin,
Can you please confirm if you have access to your VM instance? If yes, can you please try to login to your VM and check your web-server is up and running?
I can see 2 VMs in one of your project is up and running. You may want to verify that GCP firewall rules are not blocking connection to your website?
If you still facing issues, please send me your cloud project number, VM instance name.
Regards,