MySQL error in file: /engine/modules/linkenso.php at line 187

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 "[[:<:]](3681)[[:>:]]") AND approve = 1 AND date < "2023-10-05 01:50:11" AND id != 48388 AND id > 48388 ORDER BY id ASC LIMIT 0, 1