The price field is missing on the create form - check the field_list in views.py

i tried everything but this issue persist
here are my code:
view.py:

from ads.models import Ad
from ads.owner import OwnerListView, OwnerDetailView, OwnerCreateView, OwnerUpdateView, OwnerDeleteView

class AdListView(OwnerListView):
    model = Ad
class AdDetailView(OwnerDetailView):
    model = Ad
class AdCreateView(OwnerCreateView):
    model = Ad
    fields = ['title', 'text', 'price']  # Include the 'price' field here

class AdUpdateView(OwnerUpdateView):
    model = Ad
    fields = ['title', 'text', 'price']  # Include the 'price' field here

class AdDeleteView(OwnerDeleteView):
    model = Ad

model.py:

from django.db import models
from django.core.validators import MinLengthValidator
from django.contrib.auth.models import User
from django.conf import settings

class Ad(models.Model) :
    title = models.CharField(
            max_length=200,
            validators=[MinLengthValidator(2, "Title must be greater than 2 characters")]
    )
    price = models.DecimalField(max_digits=7, decimal_places=2, null=True)
    text = models.TextField()
    owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    # Shows up in the admin list
    def __str__(self):
        return self.title

forms.py:

from django import forms
from .models import Ad

class AdForm(forms.ModelForm):
    class Meta:
        model = Ad
        fields = ['title', 'text', 'price']

ad_form.htm:

{% extends "base_menu.html" %}
{% load crispy_forms_tags %}
{% block content %}
<p>
  <form action="" method="post">
    {% csrf_token %}
    {{ form|crispy }}
    <input type="submit" value="Submit">
    <input type="submit" value="Cancel" onclick="window.location.href='{% url 'ads:all' %}';return false;">
  </form>
</p>
{% endblock %}

please help me fix this issue

Side note: When posting code here, enclose the code between lines of three backtick - ` characters. This means you’ll have a line of ```, then your code, then another line of ```. This forces the forum software to keep your code properly formatted. (I’ve taken the liberty of fixing your original post for you.)

Please post the OwnerCreateView here.