MySQL error in file: /engine/modules/show.full.php at line 1525

Error Number: 2006

The Error returned was:
MySQL server has gone away

SQL query:

UPDATE dle_post_extras SET related_ids='4146,6498,6151,6507,9739,7109,6782,5926,6198,4671,6721,3449' WHERE news_id='6144'