Joomla 1.5 Вместо страницы настроек JoomGallary такая ошибка..

Notice: Trying to get property of non-object in /usr/home/kovalenko/data/www/kovalenko.ck.ua/administrator/components/com_joomgallery/admin.joomgallery.php on line 73

Notice: Trying to get property of non-object in /usr/home/kovalenko/data/www/kovalenko.ck.ua/administrator/components/com_joomgallery/admin.joomgallery.php on line 76

Код (PHP):

1. case 'configuration':
2.     //check update files from previous update and delete them
3.     jimport('joomla.filesystem.file');
4.     if(JFile::exists(JPATH_COMPONENT.DS.'joomgalleryupdate.xml')) {
5.       JFile::delete(JPATH_COMPONENT.DS.'joomgalleryupdate.xml');
6.     }
7.     //73
8.     if(JFile::exists(JPath::clean(JPATH_ROOT.DS.$config->jg_pathtemp.'update.zip'))){
9.       JFile::delete(JPath::clean(JPATH_ROOT.DS.$config->jg_pathtemp.'update.zip'));
10.     }
11.     //76
12.     if(JFolder::exists(JPath::clean(JPATH_ROOT.DS.$config->jg_pathtemp.'update'))){
13.       JFolder::delete(JPath::clean(JPATH_ROOT.DS.$config->jg_pathtemp.'update'));
14.     }
15.     $task = 'configuration';
16.     break;