[horde] [Horde 5.3.0-git + pgsql + dovecot + debian7 + apache2] No applications on a fresh install

[Aramir Galanodonel]

Hello,

I recently installed horde using the git repository (I couldn't use PEAR because of the pgsql PDO bug).
The installation went fine, same goes for the configuration.

But after all that, my applications where nowhere to be found in my admin configuration page ( http://image.noelshack.com/fichiers/2015/08/1424559180-horde1.png )
The strange part is, my applications seems to be there, I can see them on my hard drive, I can see them on the test.php page ( http://image.noelshack.com/fichiers/2015/08/1424559180-horde2.png ), and when I run tests on them everything seems fine except for a missing conf.php ( http://image.noelshack.com/fichiers/2015/08/1424559180-horde3.png ). conf.php which I'm supposed to create using the admin configuration page where those applications are missing.
Also when I try to access to the appliaction config page by guessing the url ( for instance: xxxxx.com/admin/config/config.php?app=imp), I end up with this error message : http://dpaste.com/38EJTK6 

I reinstalled horde several times by now. Read the whole documentation numerous times. But I couldn't find anything usefull to debug me. By reading the docs, it sounds like;  checking the prerequisites, doing a "git pull" and executing the script should be enough to get a fresh install with every application installed. But it's not the case for me.

Please, does someone have any clues of what is going on? Any hint of what I might have done wrong?
And please feel free to ask for more informations, debug log, etc
Thanks for reading.