unpublish hikaserial packna return 403 forbifdden

-- HikaShop version -- : 2.3.2
-- HikaSerial version -- : 1.8.3
-- Joomla version -- : 2.5.22
-- PHP version -- : 5.3.9
-- Browser(s) name and version -- : many many

hi

1) I try to unpublish package name and joomla return this html page
is there some order to follow to be able to disable selected items ?
for delete i discover that packs need to have no serial beforebe able to delete the packs .

hi
for information
the change must occur in line 18
comment in php ll be //'edit' => array('edit','toggle'),
regard's