Sometimes while working with the site, you get this warning:
Warning: file_put_contents(/theme/css/options.css): failed to open stream: Permission denied in wp-content/themes/theme/redux_framework/ReduxCore/framework.php on line 459
And the fix is very simple – you have to change the permissions to 777 for the folder wp-content/themes/theme/css.
You may read how to do that in the corresponding post.
DFD Support Team