A PHP Error was encountered

Severity: Notice

Message: Undefined variable: abstract

Filename: views/library_read.php

Line Number: 232

Backtrace:

File: /home/u8666530/public_html/repository/application/views/library_read.php
Line: 232
Function: _error_handler

File: /home/u8666530/public_html/repository/application/controllers/Landing.php
Line: 96
Function: view

File: /home/u8666530/public_html/repository/index.php
Line: 315
Function: require_once