A PHP Error was encountered

Severity: Warning

Message: Undefined array key "r_id"

Filename: controllers/VerifyExp.php

Line Number: 76

Backtrace:

File: /var/www/html/application/modules/jammu/controllers/VerifyExp.php
Line: 76
Function: _error_handler

File: /var/www/html/index.php
Line: 317
Function: require_once

{"resp":0,"msg":"User does not exist"}