Issue with latest version

[rikesh1212]

When I try with just these settings,

STATIC_URL = '/static/'

from filebrowser.sites import site
site.directory = "uploads/" 

The link opens and I can browse the uploads folder.

But when I go with the regular settings,

STATIC_URL = '/static/'
MEDIA_URL = '/media/'
STATIC_ROOT = BASE_DIR/'static'
MEDIA_ROOT = BASE_DIR/'media'

from filebrowser.sites import site
site.directory = "uploads/" 

This shows the error:

ImproperlyConfigured at /admin/filebrowser/browse/
Error finding Upload-Folder (site.storage.location + site.directory). Maybe it does not exist?

Full traceback:

Environment:

Request Method: GET
Request URL: http://localhost:8000/admin/filebrowser/browse/

Django Version: 3.1.5
Python Version: 3.8.5
Installed Applications:
['grappelli',
 'filebrowser',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'dibbs_spider']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']

Traceback (most recent call last):
  File "C:\Users\admin\PycharmProjects\spider\venv\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\admin\PycharmProjects\spider\venv\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\admin\PycharmProjects\spider\venv\lib\site-packages\filebrowser\decorators.py", line 36, in decorator
    raise ImproperlyConfigured(_("Error finding Upload-Folder (site.storage.location + site.directory). Maybe it does not exist?"))

Exception Type: ImproperlyConfigured at /admin/filebrowser/browse/
Exception Value: Error finding Upload-Folder (site.storage.location + site.directory). Maybe it does not exist?

This error was not on older versions of django.