Problem connection main page

Hi,
I have installed owncloud on my raspberry (as a server).
I have a problem when i want to log on the main page.
When i input my login nothing happens.
So i went to the console and i have these errors :
Jquery is not definded i know it's a problem with this library.
How can i do ? Jquery was installed, i don't understand...

thanks

as already asked on github: how did you install?

i followed the step 2 on this tuto :
https://doc.ubuntu-fr.org/owncloud-serveur#probleme_s_connu_s
i installed php5, apache2, git
npm, bower everything i need but i can't login because it seems to be jquery who makes a bug

this tutorial is just plain wrong - please use our docs:
https://doc.owncloud.org/server/9.1/admin_manual/installation/linux_installation.html

ok but it doesn't talk about my problem

your problem is that you installed the wrong way - please follow our installation guide