MySQL error in file: /engine/modules/linkenso.php at line 189

Error Number: 3685

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

SQL query:

SELECT id, date, short_story, full_story, xfields, title, metatitle, category, alt_name, approve FROM dle_post WHERE (category regexp "[[:<:]](4)[[:>:]]") AND approve = 1 AND date < "2025-04-29 12:27:22" AND id != 291 AND id < 291 ORDER BY id DESC LIMIT 0, 5