Update app.py

app.py

@@ -81,6 +81,7 @@ def scan():
 # Run
 if __name__ == "__main__":
     # If there are no users, create admin account
+    with app.app_context():
         if User.query.count() == 0:
             admin = User(username="admin", password="admin", is_admin=True)
             db.session.add(admin)