A PHP Error was encountered
Severity: Notice
Message: Undefined index: username
Filename: sale/sale_form.php
Line Number: 37
Backtrace:
File: /home/mightytech/public_html/book/application/views/sale/sale_form.php
Line: 37
Function: _error_handler
File: /home/mightytech/public_html/book/application/controllers/Sale.php
Line: 66
Function: view
File: /home/mightytech/public_html/book/index.php
Line: 315
Function: require_once