 <p>Reading your comments, i see that it is not a ZF2 error, and probably not even a third party module, so it could be an ElFinder Error. Probably it cannot find some required resources.</p> <p>Reading some code and some webdites, i think that probably you are just lacking the url option of the viewhelper, so ElFinder can find the backend route he tries to connect to. </p> <p>With the QuElFinder, the route to the connector is <code>/quelfinder/connector</code> so in your view, the code will be:</p> <pre><code>echo $this-&gt;QuElFinder('elfinder', array( 'width' =&gt; "50%", 'height' =&gt; '300', 'url' =&gt; '/quelfinder/connector' ) ); </code></pre> <p>Also, you should go to <code>QuElFinder/config/module.config.php</code> and check everything under </p> <pre><code> 'QuConfig'=&gt;array( 'QuElFinder'=&gt;array( </code></pre> <p>because as you can see in the QuElFinder controller, in the <code>connectorAction()</code> function, it is reading that configuration, and there is a lot of paths.</p>