A PHP Error was encountered

Severity: 8192

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

Filename: models/AsiSeEscribe_model.php

Line Number: 228

Backtrace:

File: /home2/asiseescribe/public_html/application/models/AsiSeEscribe_model.php
Line: 228
Function: substr_count

File: /home2/asiseescribe/public_html/application/controllers/AsiSeEscribe_c.php
Line: 325
Function: set_visit_count

File: /home2/asiseescribe/public_html/index.php
Line: 315
Function: require_once