A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/Download.php

Line Number: 91

Backtrace:

File: /home/www-root/demo.cucas.cn/app/school_web_nenu/application/controllers/Download.php
Line: 91
Function: _error_handler

File: /home/www-root/demo.cucas.cn/app/school_web_nenu/index.php
Line: 114
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/Download.php

Line Number: 92

Backtrace:

File: /home/www-root/demo.cucas.cn/app/school_web_nenu/application/controllers/Download.php
Line: 92
Function: _error_handler

File: /home/www-root/demo.cucas.cn/app/school_web_nenu/index.php
Line: 114
Function: require_once