If there is no error - nothing, you cant see where is the problem. We have 4-5 times similar problems (from over 500 purchases and unknown downloads of free versions).

Problem is due on different server configuration and configuration of php - some missing module. The only way is to use component on other server where component work well and see differences in installed php modules on both servers.

But this can be hard

I recommend you just to use component on other server.

ok, I just tested on another server here: http://javieryep.com/testground/15/adminis...daggregator.php

now I have: 'Import finished'

but when I go to the site http://javieryep.com/testground/15/
there are no articles )
so nothing has got imported! ??

also I go to the admin backed and also there are not articles.

All the feeds are published.

Only works manual.

((

When you get "Import finished" there is a number of content items that are imported. Keep in mind that if imported content items are in admin but you can publish menu to category where are content.

This topic will help you: Menu to joomla aggregator