Ошибка 500 на установке - Сообщения об ошибках

500 - Обнаружена ошибка.

JDatabaseMySQLi::query: 1060 - Duplicate column name 'category_id' SQL=ALTER IGNORE TABLE `t76za_jcomments_objects` ADD `category_id` INT(11) UNSIGNED NOT NULL DEFAULT '0' AFTER `object_group`;

Call stack   
#      Function      Location   
1      JAdministrator->dispatch()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/administrator/index.php:46   
2      JComponentHelper::renderComponent()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/administrator/includes/application.php:153   
3      JComponentHelper::executeComponent()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/application/component/helper.php:348   
4      require_once()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/application/component/helper.php:380   
5      JController->execute()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/administrator/components/com_installer/installer.php:18   
6      InstallerControllerInstall->install()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/application/component/controller.php:761   
7      InstallerModelInstall->install()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/administrator/components/com_installer/controllers/install.php:29   
8      JInstaller->install()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/administrator/components/com_installer/models/install.php:105   
9      JInstallerComponent->install()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/installer/installer.php:472   
10      JInstallerComponent->update()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/installer/adapters/component.php:218   
11      com_jcommentsInstallerScript->postflight()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/installer/adapters/component.php:1075   
12      com_jcommentsInstallerScript->executeSQL()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/tmp/install_54cf11ea1359c/script.jcomments.php:98   
13      JDatabaseMySQLi->execute()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/tmp/install_54cf11ea1359c/script.jcomments.php:296   
14      JError::raiseError()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/database/database/mysqli.php:396   
15      JError::raise()      /var/www/h.vitaly/data/www/h.vitaly.by.kg/libraries/joomla/error/error.php:251

Помогите исправить. JComments 3.0.5 Stable + Joomla 2.5.2.8
PHP Version 5.4.36