MySQL error in file: /engine/modules/show.short.php at line 66

Error Number: 3685

The Error returned was:
Illegal argument to a regular expression.

SQL query:

SELECT p.id, p.autor, p.date, p.short_story, CHAR_LENGTH(p.full_story) as full_story, p.xfields, p.title, p.category, p.alt_name, p.comm_num, p.allow_comm, p.fixed, p.tags, e.news_read, e.allow_rate, e.rating, e.vote_num, e.votes, e.view_edit, e.editdate, e.editor, e.reason FROM dle_post p LEFT JOIN dle_post_extras e ON (p.id=e.news_id) WHERE category regexp '[[:<:]](23|24|129|132|135|137|140|142|144|147|149|151|152|25|172|173|176|177|181|183|186|187|188|189|190|191|192|193|252|27|194|197|198|200|201|202|203|204|205|206|207|208|211|213|253|28|29|153|156|157|158|160|162|165|167|169|170|171)[[:>:]]' AND approve=1 AND date < '2024-12-22 10:56:15' ORDER BY fixed desc, date DESC LIMIT 0,5000