UPDATE:

The solution was to change
"url": "http://localhost:4567",
to
"url": "http://185.***.***.***:4567", AKA my IP adress

I just installed nodebb and when I go to a page I get this error:

Looks like your connection to NodeBB was lost, please wait while we try to reconnect.

Here is my config.json:

{
    "url": "http://localhost:4567",
    "secret": "0ca0e0fc-a6d3-4794-9128-388a3d6cbf3a",
    "database": "redis",
    "redis": {
        "host": "127.0.0.1",
        "port": "6379",
        "password": "",
        "database": "0"
    }
}

How can I fix this?