A PHP Error was encountered

Severity: Notice

Message: Undefined index: mock

Filename: views/stripeapi.php

Line Number: 137

Backtrace:

File: /home4/hellonnx/public_html/university/application/views/stripeapi.php
Line: 137
Function: _error_handler

File: /home4/hellonnx/public_html/university/application/controllers/Login_student.php
Line: 125
Function: view

File: /home4/hellonnx/public_html/university/index.php
Line: 316
Function: require_once