Severity: Notice
Message: Trying to get property of non-object
Filename: controllers/Main_book.php
Line Number: 541
Backtrace:
File: /var/www/sites/com.patchesoft.reader/application/controllers/Main_book.php
Line: 541
Function: _error_handler
File: /var/www/sites/com.patchesoft.reader/index.php
Line: 315
Function: require_once