Thread:Project:Support desk/directory index of "/srv/http/mywiki/extensions/WikiEditor/modules/images/toolbar/" is forbidden

I have the following error is displayed in my log each time I validate a modification on my wiki: [error] 1404#0: *45 directory index of "/srv/http/mywiki/extensions/WikiEditor/modules/images/toolbar/" is forbidden,

I don't why the WikiEditor extension asks for a directory index.

Does anyone have the same problem ? Or could explain me why WikiEditor has this behavior ?

I use Mediawiki version 1.22.5 PHP version 5.5.12 (fpm-fcgi) on Nginx I installed those extensions:
 * SyntaxHighlight (version 1.0.8.11)
 * FooterManager (version 0.0.1)
 * GoToCategory (version 1.0)
 * WikiEditor (version 0.3.1)