Severity: Notice
Message: Undefined variable: categories
Filename: learningcenter/Blog.php
Line Number: 160
Backtrace:
File: /var/www/html/application/controllers/learningcenter/Blog.php
Line: 160
Function: _error_handler
File: /var/www/html/index.php
Line: 304
Function: require_once
Unable to load the requested file: frontend/template/template_blog.php