A PHP Error was encountered

Severity: 8192

Message: explode(): Passing null to parameter #2 ($string) of type string is deprecated

Filename: page_coupon/coupon_item.php

Line Number: 34

Backtrace:

File: /volume1/web/aikeyword/application/views/www/page_coupon/coupon_item.php
Line: 34
Function: explode

File: /volume1/web/aikeyword/application/views/www/general/main.php
Line: 95
Function: view

File: /volume1/web/aikeyword/application/controllers/Home.php
Line: 947
Function: view

File: /volume1/web/aikeyword/index.php
Line: 346
Function: require_once