A PHP Error was encountered

Severity: Warning

Message: Undefined array key "LANG"

Filename: admin/ModelCategory.php

Line Number: 60

Backtrace:

File: /home/radingroup/public_html/application/models/admin/ModelCategory.php
Line: 60
Function: _error_handler

File: /home/radingroup/public_html/application/controllers/Post.php
Line: 18
Function: getAllCategoryByLang

File: /home/radingroup/public_html/application/controllers/Post.php
Line: 12
Function: index

File: /home/radingroup/public_html/index.php
Line: 290
Function: require_once