Lỗi khi import attachments vbb cho xen

Mình làm đến bước import attach thì nó báo lỗi này..ai giúp mình với
Mysqli statement execute error : Duplicate entry '991' 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 XenForo/DataWriter.php at line 1591
5. XenForo_DataWriter->_insert() in XenForo/DataWriter.php at line 1580
6. XenForo_DataWriter->_save() in XenForo/DataWriter.php at line 1381
7. XenForo_DataWriter->save() in XenForo/Model/Import.php at line 1718
8. XenForo_Model_Import->importPostAttachment() in XenForo/Importer/myvbulletin4.php at line 209
9. XenForo_Importer_myvBulletin4->_makeAttachment() in XenForo/Importer/myvbulletin4.php at line 120
10. XenForo_Importer_myvBulletin4->stepAttachments() in XenForo/Importer/Abstract.php at line 77
11. XenForo_Importer_Abstract->runStep() in XenForo/ControllerAdmin/Import.php at line 180
12. XenForo_ControllerAdmin_Import->_runStep() in XenForo/ControllerAdmin/Import.php at line 132
13. XenForo_ControllerAdmin_Import->actionImport() in XenForo/FrontController.php at line 313
14. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132

 

Mysqli statement execute error : Duplicate entry '991' for key 'PRIMARY'

Bạn xem lại xem cái att id 991 có vấn đề gì ko. Xóa nó ở vbb đi rồi làm lại xem sao

 

nó lỗi hàng laotj ID bạn ạ

 

Mình cũng bị lỗi tương tự, cách khắc phục làm sao vậy các bạn