A PHP Error was encountered

Severity: 8192

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

Filename: helpers/app_helper.php

Line Number: 185

Backtrace:

File: /home/u223812518/domains/enews.id/public_html/application/helpers/app_helper.php
Line: 185
Function: strtotime

File: /home/u223812518/domains/enews.id/public_html/application/views/tag_detail.php
Line: 37
Function: hitung_waktu_berlalu

File: /home/u223812518/domains/enews.id/public_html/application/controllers/Tag.php
Line: 37
Function: view

File: /home/u223812518/domains/enews.id/public_html/index.php
Line: 316
Function: require_once