nginx configuration file:

server {
    listen 80;
    server_name 127.0.0.1; 
    charset  utf-8;
    index index.html index.htm index.nginx-debian.html;
    client_max_body_size 75M;

    location / {
        include uwsgi_params;
        uwsgi_pass 127.0.0.1:8000;
        uwsgi_param UWSGI_PYTHON /PycharmProjects/Flask/venv;
        uwsgi_param UWSGI_CHDIR /PycharmProjects/Flask;
        uwsgi_param UWSGI_SCRIPT run:app;
            
    }
}

File configuration of uwsgi:

[uwsgi]                                                     
socket = 127.0.0.1:8000                         
plugins = python                                        
chidir = /PycharmProjects/Flask                                   
wsgi-file = app.py                                       
callable = app 

Flask Code:

-sharp!/usr/bin/env python
-sharp -*- coding: utf-8 -*-
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
    return "Hello World!"
if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8080)

Why enter 127.0.0.1 Bad Gateway 80 in the browser and return the result: 502 QR
where is the configuration wrong?