MySQL error in file: /engine/modules/show.full.php at line 994

Error Number: 3685

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

SQL query:

SELECT id, date, short_story, xfields, title, category, alt_name FROM dle_post WHERE category regexp '[[:<:]](5)[[:>:]]' AND MATCH (title, short_story, full_story, xfields) AGAINST ('[MAX] Sasha Grey - Spermcocktail.Com(19) - 326.22 MB SashaGrey - SiteRipMAX-326.22 MB-Sasha Grey - Spermcocktail.Com(19)Watch Sasha Grey - Spermcocktail.Com(19). Awesome Studio porn video will give you happiness.Download File - Sasha Grey - Spermcocktail.Com(19)SashaGrey') AND id != 1124247 AND approve=1 LIMIT 8