A PHP Error was encountered

Severity: Warning

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

Filename: controllers/Reservation.php

Line Number: 5770

Backtrace:

File: /var/app/current/application/controllers/Reservation.php
Line: 5770
Function: _error_handler

File: /var/app/current/index.php
Line: 292
Function: require_once