Severity: Notice
Message: Undefined index: p_staff_a
Filename: controllers/Staff.php
Line Number: 74
Backtrace:
File: /var/www/vhosts/osms.edu.vn/nancy.osms.edu.vn/application/controllers/Staff.php
Line: 74
Function: _error_handler
File: /var/www/vhosts/osms.edu.vn/nancy.osms.edu.vn/index.php
Line: 293
Function: require_once