Không cài được add on

Hiện tại tớ cài add on widget_framework 2.5.0 thì bị lỗi, Xenforo tớ sài là bản 1.3.1. Có ai xem giùm lỗi với k ạ
Mysqli statement execute error : Duplicate entry 'WF_WidgetPage' for key 'PRIMARY'

1. Zend_Db_Statement_Mysqli->_execute() in Zend/Db/Statement.php at line 297
2. Zend_Db_Statement->execute() in Zend/Db/Adapter/Abstract.php at line 479
3. Zend_Db_Adapter_Abstract->query() in Zend/Db/Adapter/Abstract.php at line 574
4. Zend_Db_Adapter_Abstract->insert() in WidgetFramework/Installer.php at line 174
5. WidgetFramework_Installer::installCustomized() in WidgetFramework/Installer.php at line 77
6. WidgetFramework_Installer::install()
7. call_user_func() in XenForo/Model/AddOn.php at line 215
8. XenForo_Model_AddOn->installAddOnXml() in XenForo/Model/AddOn.php at line 169
9. XenForo_Model_AddOn->installAddOnXmlFromFile() in XenForo/ControllerAdmin/AddOn.php at line 187
10. XenForo_ControllerAdmin_AddOn->actionInstall() in XenForo/FrontController.php at line 347
11. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
12. XenForo_FrontController->run() in /home/oxvpxxhf/public_html/forum/admin.php at line 13