MySQL error in file: /engine/modules/show.full.php at line 856

Error Number: 2006

The Error returned was:
MySQL server has gone away

SQL query:

SELECT id, date, short_story, xfields, title, category, alt_name FROM ru_post WHERE id IN(123617,140749,139692,124816,135586,135402,133744,141327,129178) ORDER BY id DESC