Update urls.py

backend/product/urls.py

@@ -1,4 +1,4 @@
-from django.urls import path
+from django.urls import path, re_path
 from .views import AllCategories, ProductView, AllProductsView, CommentView, ShowCaseProductsView, ShowCaseCategoryListView
 
 urlpatterns = [
@@ -6,6 +6,6 @@ urlpatterns = [
     path('categories', AllCategories.as_view(), name='all-categories'),
     path('slider_categories', ShowCaseCategoryListView.as_view(), name='all-categories'),
     path('comments/<int:pk>', CommentView.as_view(), name='comment-views'),
-    path('<slug:slug>/', ProductView.as_view(), name='product-detail'),
+    re_path(r'^(?P<slug>[\u0600-\u06FF\s]+)/$', ProductView.as_view(), name='product-detail'),
     path('', AllProductsView.as_view(), name='category-products'),
 ]