A PHP Error was encountered

Severity: Notice

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

Filename: storage/MountainTrail.php

Line Number: 22

Backtrace:

File: /home/singletrack/application/controllers/storage/MountainTrail.php
Line: 22
Function: _error_handler

File: /home/singletrack/index.php
Line: 292
Function: require_once