Facebook + Twitter + Istagram not working

Hi,
i only managed to properly show youtube channel ( www.sportisoola.it ).
For facebook and twitter i followed the on-line guide, but without any chance of working.
While for istagram i get a wrong response, so i do not even get token.
I would also like to known if it is possible to have full screen size wall.

Thank you.

Hi,
Thank for choosing our product!
I can't login your site, Can you check again?
- Facebook: You can use the following link to get "UserID" of Facebook: findmyfbid.com/
- Twitter, Instagram : You need to get enough information so it can operate.
If not sucessfull, please send link your site and admin your account via private message.
I will help you check!

Best regard,
Tinh

Hi,
I found one error from the console (500 Internal Server Error).
Here are a few notes when you encounter this error. (attachment)
In this case , it is a permission error. It seems that your server does not have access to two files: facebook.php, twitter.php. I have granted it (644-> 755). Currently, Jux Social Stream has operations normal.

Best regard,
Tinh