A PHP Error was encountered

Severity: Notice

Message: Undefined index: username

Filename: book/book_form.php

Line Number: 31

Backtrace:

File: /home/mightytech/public_html/book/application/views/book/book_form.php
Line: 31
Function: _error_handler

File: /home/mightytech/public_html/book/application/controllers/Book.php
Line: 63
Function: view

File: /home/mightytech/public_html/book/index.php
Line: 315
Function: require_once

Array ( [__ci_last_regenerate] => 1573952669 )
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