Django использует старый файл views.py

Итак, при запуске моего проекта главная страница работает хорошо, регистрация и вход. Однако некоторые вещи не работают. Я нашел ошибки, где есть вещи из старого views.py. Поэтому я думаю, что Django использует папку vies.py для других проектов.

views.py

class PostDeleteView(LoginRequiredMixin, UserPassesTestMixin, SuccessMessageMixin, DeleteView):
   model = Posts
   success_message = 'Your post has been deleted' #it is not working and I dont know why
   success_url = reverse_lazy('homepage')
   template_name = 'posts/delete.html'

   
   def test_func(self):
      post = self.get_object() 
      if self.request.user == post.user: 
         return True
      return False 

urls.py

from django.urls import path
from django.conf import settings
from django.conf.urls.static import static
from .views import PostsListView, PostCreatView, PostDeleteView

urlpatterns = [
   path('', PostsListView.as_view(), name='homepage'),
   path('delete/<int:pk>/', PostDeleteView.as_view(), name='delete-post'),
   path('creat-post', PostCreatView.as_view(), name='create-post')
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

         

delete.html

{% extends "posts/base.html" %}
{% block content %}
        <form method="POST">
           {% csrf_token %}
            <h2> Are you sure you want to delete your post?</h2>
            <button class="btn btn-outline-danger  mt-1 mb-1 mr-1 ml-1" type="submit">Yes Delete</button>

            <a class="btn btn-outline-secondary  mt-1 mb-1 mr-1 ml-1" href="{% url 'post-and-comments' object.id %}">Cancel</a>
            </div>
        </form>

{% endblock %}

list.html

{% extends "posts/base.html" %}
{% block content %}
   {% for post in posts %}
   
   <p class="font-weight-bold">{{post.user.username}}</p>
   {% if user == post.user %}
   <div>
      <a href="{% url 'delete-post' post.pk %}" class="btn btn-outline-danger">Delete Post</a>
   </div>
   {% endif %}
   <img src="{{ post.image.url }}" />



   <p class="d-block mb-1">{{post.caption}}</p>






   <hr class="bg-danger border-2 border-top border-danger">
   <hr class="bg-danger border-2 border-top border-danger">


   
   
   
   {% endfor %}
{% endblock %}

Ошибка, которую я получаю Screen shot of the error

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