MySQL Error!
MySQL error in file: /engine/modules/show.short.php at line 64
Error Number: 1139
The Error returned was:
Got error 'empty (sub)expression' from regexp
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 '[[:<:]](|26|9|5|27|40|2|7|13|41|42|31|12|51|43|44|30|10|14|45|46|21|18|47|48|4|49|6|28|34|33|36|20|16|32|50|19|35|29|17|15|37|23|25)[[:>:]]' AND approve=1 ORDER BY fixed desc, date DESC LIMIT 0,28