Change url in multiple languages

Using Django Forms & APIs
1

hello, i just started. I added multiple languages to my Django project. I get an error when I assign a url from one language to another page

language = en
url: site/en/product/trial
set_language = en
surl : site/en/product/trial
And
Page not found (404)
No Categories match the given query.

Whereas en url but url should have been http://127.0.0.1:8000/en/product/test

Can you help me ?

views.py

from django.shortcuts import render, get_object_or_404

# Create your views here.
from .models import Category, Product, ProductImage

def category_view(request, category_slug):
    #print(f"kategori slug : {category_slug}")
    category = get_object_or_404(Category, slug=category_slug)
    products = Product.objects.filter(
        is_activate=True,
        category=category,
    )
    context = dict(
        category=category,
        products=products
    )
    return render(request, 'product/products_list.html', context)

navbar.html

<form action="{% url 'set_language' %}" method="post">{% csrf_token %}
    <input name="next" type="hidden" value="{{ redirect_to }}">
    <select name="language">
        {% get_current_language as LANGUAGE_CODE %}
        {% get_available_languages as LANGUAGES %}
        {% get_language_info_list for LANGUAGES as languages %}
        {% for language in languages %}
            <option value="{{ language.code }}"{% if language.code == LANGUAGE_CODE %} selected{% endif %}>
                {{ language.name_local }} ({{ language.code }})
            </option>
        {% endfor %}
    </select>
    <input type="submit" value="Go">
</form>