A Database Error Occurred

Error Number: 3685

Illegal argument to a regular expression.

SELECT a.id,a.title,a.alias,a.introtext,b.title as category_title,a.state,b.alias as catalias,a.catid FROM xp_content a LEFT JOIN xp_categories b ON a.catid= b.id WHERE a.state=1 AND a.metakey REGEXP '[[:<:]]trái tim bị tổn thương[[:>:]]' =1 ORDER BY a.modified DESC LIMIT 0,16

Filename: /home/truyenngan/ci/models/keyphrase_model.php

Line Number: 44