django-forms-builder: Forms work from /admin but not directly

Below is my form url and it works fine when I got redirect to this url from /admin and it was working fine before directly as well but now it throws the 404 when I try to access the url after submitting the form once. The error is shown in the image below

http://localhost:8000/forms/test

enter image description here

project/urls.py

urlpatterns = [
    path('admin/', admin.site.urls),
    path('forms/', include(forms_builder.forms.urls)),

]

Below image shows that it works fine if I access the form from here

enter image description here

Any idea what I may be doing wrong here?