i can't install gk-jomsocial-feed

I dowload the module but i can't install.

it show me the following error:
JInstaller: :Install: Failed to copy file /var/www/vhosts/site.com/subdomains/site/httpdocs/tmp/install_52574d153ffd6/GK-JomSocial-Feed-1.0.1-J-3/mod_gk_js_feed/mod_gk_js_feed.php to /var/www/vhosts/site.com/subdomains/site/httpdocs/modules/mod_gk_js_feed/mod_gk_js_feed.php

Message
Error installing module

I check the chmod and i think are well.
But i check also inside the folder and this archive :'mod_gk_js_feed.php are there....

Did you have any similar problems with any other extension? Please check the file permissions for /tmp directory.

No, other extensions could be installes sucesfull, for example jomsocial.

/tmp directory have chmod 777

Please try to re-download rest-files package, if the problem still exist please provide me all details via PM.

Please try to re-download rest-files package, if the problem still exist please provide me all details via PM.

Ok well. one question. whem i install the quickstart the gk_jomsocial_feed isn't install in the package?

Ok. this was fixed.
How?
I unistall the gk_jomsocial_feed from manage modules and reinstall again the module wich i download yesterday and the module was show on modules, before this wasn't show and now i can configure it to be show on grid with the opcions for joomsocial: pictures and statuses.....

I see another problem. This time on admin panel. I want create a new user group for k2, click in this option '+ Add' and it redirect me to create user not group. What happen with?

Admin panel issue is not related with our template, we don't overwrite any components and even Joomla! core code from backend. Please try to reinstall extension.