A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: patron/donate.php

Line Number: 35

Backtrace:

File: /app/application/views/tpl2/patron/donate.php
Line: 35
Function: _error_handler

File: /app/application/core/MY_Controller.php
Line: 598
Function: view

File: /app/application/controllers/Patron.php
Line: 112
Function: render_tpl

File: /app/index.php
Line: 32
Function: require_once