Fixed django-storages compatibility - #16

admin_interface/models.py

@@ -107,7 +107,12 @@ class Theme(models.Model):
 
     def set_default_logo(self):
 
-        if self.logo and os.path.isfile(self.logo.path):
+        if self.logo:
+            # django-storages compatibility
+            try:
+                if os.path.isfile(self.logo.path):
+                    return
+            except NotImplementedError:
                 return
 
         logo_filename = 'logo-django.svg'