Piwik & Joomla: Pages - only "index.php" (no replies)

Hi folks!

I use Piwik on two websites that are made with joomla.
One function doesn't work:
To check which sub-pages (articles) my visitors have watched.

- on one of the two websides, the analysis of "pages" shows only "index.php"
- on the other websites, the analysis shows weblinks, but not the title of the subpages (articles), instead it shows a very long URL

i integrated the tracking code with a joomla plugin.

I am looking forward to a reply!
greetings
Nordrev