A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: models/Model_articles.php

Line Number: 85

Backtrace:

File: /home/qsmartli/public_html/en/application/models/Model_articles.php
Line: 85
Function: _error_handler

File: /home/qsmartli/public_html/en/application/controllers/Articles.php
Line: 19
Function: getArticleIdByUrl

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