Install wordpress on the same server with tutor

Hello Everyone

I have tried to install wordpress but It does not work
because port 80 is used by the tutor
Could anyone please tell me how can I use
a reverse proxy to fix this problem.

I think you have two options:

A: Keep tutor running on ports 80/443, where tutor/caddy would your reverse proxy,
Choosing this option, you would have to use caddy patches, to add your services to tutor proxy server.

The patch you would need to use caddyfile.
An example of using through tutor plugins file:

from tutor import hooks

hooks.Filters.ENV_PATCHES.add_item(
    (
        "caddyfile",
        """
yourservice.yourdomain.com {
   reverse_proxy yourservice
}
"""
    )
)

B: Use your own proxy server:
There is a doc about this use scinario at Running Open edX behind a web proxy — Tutor documentation following this, tutor will no longer run port 80/443, and you would have route Open edX/tutor related traffic accordingly.