After increasing ram size and cpu size to a VM, gitlab url is not working.

Hi There,

I have configured GITLAB in one of our VM, at first it was having 4GB RAM and only 4 CPU's now I am trying to increase the size of the RAM and CPU. I have increased it but don't know for some reason gitlab URL is not working. I see network error

Network Error (tcp_error)

A communication error occurred: "" The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

For assistance, contact your network support team.

I have tried a lot in many ways but it did not worked.

I am increasing it because of performance issues, which I am facing very badly.