Update server.py

server.py

@@ -3,9 +3,12 @@ import random
 import sqlite3
 from datetime import datetime, timedelta
 from flask import Flask, request, jsonify, redirect, session, render_template_string
+from flask import Flask
 from flask_limiter import Limiter
 from flask_limiter.util import get_remote_address
 
+app = Flask(__name__)
+
 limiter = Limiter(key_func=get_remote_address)
 limiter.init_app(app)