Lỗi tải tệp tin đính kèm

Các bạn giúp mình với:
Đây là giao diện khi mình tải đính kèm:


Và đây là lỗi trong admincp:


Còn đây là lỗi:

Mã:

ErrorException: copy(/***/***/***/***/***/internal_data/attachments/0/15-d65e82a950974c1053d9c82578fb5aa2.data): failed to open stream: Permission denied - library/XenForo/Helper/File.php:253
Generated By: TraiAnhHung, 7 phút trước
Stack Trace
#0 [internal function]: XenForo_Application::handlePhpError(2, 'copy(/***/***.', '/***/***/web...', 253, Array)
#1 /***/***/***/***/***/library/XenForo/Helper/File.php(253): copy('/tmp/phpH1PYSx', '/home/admin/web...')
#2/***/***/***/***/***/library/XenForo/DataWriter/AttachmentData.php(264): XenForo_Helper_File::safeRename('/tmp/phpH1PYSx', '/home/admin/web...')
#3 /***/***/***/***/***/library/XenForo/DataWriter/AttachmentData.php(223): XenForo_DataWriter_AttachmentData->_moveFile('/tmp/phpH1PYSx', '/home/admin/web...')
#4 /***/***/***/***/***/public_html/library/XenForo/DataWriter/AttachmentData.php(143): XenForo_DataWriter_AttachmentData->_writeAttachmentFile('/tmp/phpH1PYSx', Array)
#5 /***/***/***/***/***/library/XenForo/DataWriter.php(1409): XenForo_DataWriter_AttachmentData->_postSave()
#6 /***/***/***/***/***/library/XenForo/Model/Attachment.php(524): XenForo_DataWriter->save()
#7 /***/***/***/***/***/library/XenForo/ControllerPublic/Attachment.php(201): XenForo_Model_Attachment->insertUploadedAttachmentData(Object(XenForo_Upload), 1)
#8 /***/***/***/***/***/library/XenForo/FrontController.php(347): XenForo_ControllerPublic_Attachment->actionDoUpload()
#9 /***/***/***/***/***/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#10 /***/***/***/***/***/index.php(13): XenForo_FrontController->run()
#11 {main}
Request State
array(3) {
  ["url"] => string(104) "http://cuocsongit.org/attachments/do-upload.json?hash=84f9222109d6476986316e5422f1821a&content_type=post"
  ["_GET"] => array(2) {
    ["hash"] => string(32) "84f9222109d6476986316e5422f1821a"
    ["content_type"] => string(4) "post"
  }
  ["_POST"] => array(7) {
    ["Filename"] => string(36) "7ffdd2e94c418d1e8b2581b83a2_prev.png"
    ["_xfNoRedirect"] => string(1) "1"
    ["_xfSessionId"] => string(32) "875096bbecdf862b04f502117913469b"
    ["_xfToken"] => string(8) "********"
    ["content_data"] => array(1) {
      ["thread_id"] => string(4) "1972"
    }
    ["_xfResponseType"] => string(4) "json"
    ["Upload"] => string(12) "Submit Query"
  }
}

 

@Lightness, @Alucar,