Severity: Notice
Message: Trying to get property 'id' of non-object
Filename: controllers/Study_material.php
Line Number: 38
Backtrace:
File: /var/www/application/controllers/Study_material.php
Line: 38
Function: _error_handler
File: /var/www/public/index.php
Line: 320
Function: require_once
Severity: Notice
Message: Trying to get property 'name' of non-object
Filename: controllers/Study_material.php
Line Number: 40
Backtrace:
File: /var/www/application/controllers/Study_material.php
Line: 40
Function: _error_handler
File: /var/www/public/index.php
Line: 320
Function: require_once
Severity: Notice
Message: Trying to get property 'name' of non-object
Filename: controllers/Study_material.php
Line Number: 41
Backtrace:
File: /var/www/application/controllers/Study_material.php
Line: 41
Function: _error_handler
File: /var/www/public/index.php
Line: 320
Function: require_once
