MySQL error in file: /engine/engine.php at line 1130

Error Number: 2006

The Error returned was:
MySQL server has gone away

SQL query:

SELECT p.id FROM dle_post p INNER JOIN (SELECT DISTINCT(dle_post_extras_cats.news_id) FROM dle_post_extras_cats WHERE cat_id IN ('23')) c ON (p.id=c.news_id) WHERE approve=1 ORDER BY date DESC LIMIT 770,10