A PHP Error was encountered

Severity: 8192

Message: trim(): Passing null to parameter #1 ($string) of type string is deprecated

Filename: controllers/Events.php

Line Number: 288

Backtrace:

File: /home/wd2multisite/public_html/calendar/frontend/application/modules/events/controllers/Events.php
Line: 288
Function: trim

File: /home/wd2multisite/public_html/calendar/index.php
Line: 345
Function: require_once