Severity: Warning
Message: A non-numeric value encountered
Filename: controllers/Exam.php
Line Number: 74
Backtrace:
File: /home/citadele/public_html/application/modules/exam/controllers/Exam.php
Line: 74
Function: _error_handler
File: /home/citadele/public_html/index.php
Line: 267
Function: require_once