[nag] NAG - cant save task

[Piotr Adamcio]

when i try to save new task or modify existing task iget error
The requested URL /nag/t/save was not found on this server

why i cant save it?
apache log
[02/Oct/2013:11:08:27 +0200] "GET 
/horde/nag/task.php?task=40otygUoJYagr9c7YC5wXw1&tasklist=a2QyPFQ59mhPtWHJSq9BK7A&actionID=modify_task 
HTTP/1.1" 200 6398 
"http://o-it.pl/horde/nag/view.php?tasklist=a2QyPFQ59mhPtWHJSq9BK7A&task=40otygUoJYagr9c7YC5wXw1" 
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) 
Ubuntu Chromium/28.0.1500.71 Chrome/28.0.1500.71 Safari/537.36"
[02/Oct/2013:11:08:30 +0200] "GET 
/piwik/piwik.php?action_name=&idsite=1&rec=1&r=993435&h=11&m=8&s=30&url=http%3A%2F%2Fo-it.pl%2Fhorde%2Fnag%2Ft%2Fsave&urlref=http%3A%2F%2Fo-it.pl%2Fhorde%2Fnag%2Ftask.php%3Ftask%3D40otygUoJYagr9c7YC5wXw1%26tasklist%3Da2QyPFQ59mhPtWHJSq9BK7A%26actionID%3Dmodify_task&_id=83da4a7f93346329&_idts=1380691427&_idvc=2&_idn=0&_refts=0&_viewts=1380691427&pdf=0&qt=1&realp=0&wma=1&dir=0&fla=1&java=1&gears=0&ag=0&cookie=1&res=1600x900 
HTTP/1.1" 200 328 "http://o-it.pl/horde/nag/t/save" "Mozilla/5.0 (X11; 
Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu 
Chromium/28.0.1500.71 Chrome/28.0.1500.71 Safari/537.36

Config.....
Tasks (nag) 4.1.2
$conf['storage']['params']['table'] = 'nag_tasks';
$conf['storage']['params']['driverconfig'] = 'horde';
$conf['storage']['driver'] = 'sql';
$conf['tasklists']['driver'] = 'default';
$conf['menu']['import_export'] = true;

Pozdrawiam
Piotr Adamcio
www.o-it.pl <http://www.o-it.pl>
<http://o-it.pl/wp-content/uploads/2011/12/logo_inreview.png>