IndexError: Number of args exceeds number of fields ошибка Django, как решить?

при запyске отладочного сервера выходит ошибка

IndexError: Number of args exceeds number of fields

Код viеws:

    #-*- coding: utf-8 -*-

from django.shortcuts import render
from django.http import HttpResponse
from django.template import loader

from .models import Bb

def index(request):
    bbs = Bb.Objects.order_by('-published')
    return render(request, 'sit/index.html', {'bbs' : bbs})

def test(request):
    return HttpResponse('ТЕСТОВАЯ ЗАПИСЬ')

Код Modеls:

from django.db import models

# Create your models here.
class Bb(models.Model):
    title = models.CharField(max_length = 120)
    content = models.TextField(null = True, blank = True)
    price = models.FloatField(null = True, blank = True)
    published = models.DateTimeField(auto_now_add = True, db_index = True)

Код Urls приложения:

from django.urls import path

from .views import *

urlpatterns = [
    path('', index),
    path('test/', test)
]

Код Urls сайта:

from django.contrib import admin
from django.urls import path, include

from sit.views import index

urlpatterns = [
    path('index/', include('sit.urls')),
    path('admin/', admin.site.urls),
]

Код index.html :

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>ЗеМаркет</title>
    </head>
    <body>
        <h1>Объъявления<h1>
        <div>
            <a>Все объявления</a>
        </div>
        {%for b in bbs%}
        <div>
            <h2>{{b.title}}</h2>
            <p>{{b.content}}</p>
            <p>{{b.price}}</p>
            <p>{{b.published|date:"d.m.Y H:i:s"}}</p>
        </div>
        {%endfor%}
    </body>
</html>

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