MySQL error in file: /engine/modules/functions.php at line 757

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 '[[:<:]](1|3|4|5|6|7|9|11|12|13|14|17|19|21|22|23|24|26|27|28|30|31|32|33|34|35|36|38|42|45|48|52|54|55|57|59|61|62|63|64|65|68|69|70|71|72|73|74|75|76|77|81|82|83|84|85|86|87|88|90|91|93|94|95|96|97|98|99|100|101|103|105|110|112|113|114|115|116|117|118|119|120|121|122|123|124|125|128|129|130|131|132|133|134|135|136|137|138|139|140|141|142|143|144|145|146|147)[[:>:]]' AND approve=1 AND date < '2023-09-24 10:39:42' ORDER BY date DESC LIMIT 0,4