A PHP Error was encountered

Severity: 8192

Message: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated

Filename: helpers/multi_language_helper.php

Line Number: 48

Backtrace:

File: /home/mdabdull/public_html/application/helpers/multi_language_helper.php
Line: 48
Function: preg_replace

File: /home/mdabdull/public_html/application/views/frontend/default/trainings.php
Line: 151
Function: site_phrase

File: /home/mdabdull/public_html/application/views/frontend/default/index.php
Line: 57
Function: include

File: /home/mdabdull/public_html/application/controllers/Home.php
Line: 6468
Function: view

File: /home/mdabdull/public_html/index.php
Line: 315
Function: require_once