An uncaught Exception was encountered

Type: Error

Message: Call to a member function result_array() on bool

Filename: /data/www/quyue/application/web/models/ChapterModel.php

Line Number: 41

Backtrace:

File: /data/www/quyue/application/web/controllers/Author.php
Line: 555
Function: getLastChapter

File: /data/www/quyue/application/web/controllers/Author.php
Line: 459
Function: getBookInfo

File: /data/www/quyue/index.php
Line: 299
Function: require_once