gridGk5 problem

I have installed gridGk5 in to joomla 3.2.

When i launch my site, it gives me this:

Notice: Use of undefined constant DS - assumed 'DS' in C:\xampp\htdocs\t7_black\modules\mod_grid_gk5\mod_grid_gk5.php on line 16

Warning: require_once(C:\xampp\htdocs\t7_black\modules\mod_grid_gk5DShelper.php): failed to open stream: No such file or directory in C:\xampp\htdocs\t7_black\modules\mod_grid_gk5\mod_grid_gk5.php on line 16

Fatal error: require_once(): Failed opening required 'C:\xampp\htdocs\t7_black\modules\mod_grid_gk5DShelper.php' (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\t7_black\modules\mod_grid_gk5\mod_grid_gk5.php on line 16

Could someone tell me, what this means and even better: What can I do about it?

Hello,

Please apply this fix: https://github.com/GavickPro/Grid-GK5/c ... 31de1e5176

Everything works fine now. KIITOS! (thanks)