A PHP Error was encountered

Severity: Notice

Message: A non well formed numeric value encountered

Filename: libraries/Captcha.php

Line Number: 48

Backtrace:

File: /home/mturbo/public_html/application/libraries/Captcha.php
Line: 48
Function: _error_handler

File: /home/mturbo/public_html/application/controllers/Mecanica.php
Line: 138
Function: main

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