Severity: Notice
Message: Undefined index: p_class_student_v
Filename: controllers/Student.php
Line Number: 30
Backtrace:
File: /var/www/vhosts/osms.edu.vn/nancy.osms.edu.vn/application/controllers/Student.php
Line: 30
Function: _error_handler
File: /var/www/vhosts/osms.edu.vn/nancy.osms.edu.vn/index.php
Line: 293
Function: require_once