MySQL error in file: /engine/modules/show.short.php at line 66

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 '[[:<:]](9|10|64|65|66|67|68|69|70|71|72|73|11|74|75|76|77|78|79|80|81|82|83|250|12|118|119|120|121|124|127|128|13|14|84|85|86|87|88|89|90|91|92|93|15|94|95|96|97|98|99|100|101|102|103|104|108|109|110|111|112|113|114|115|116|117|106|154|155|159|161|163|164|166|168|107|174|175|178|179|180|182|184|185)[[:>:]]' AND approve=1 AND date < '2024-12-22 11:16:57' ORDER BY fixed desc, date DESC LIMIT 0,5000