Additional uncaught exception thrown while handling exception.

<h1>Additional uncaught exception thrown while handling exception.</h1><h2>Original</h2><p>PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT n.*, fb.body_value AS body_value
FROM 
{node} n
INNER JOIN {field_data_field_campaign} fc ON n.nid = fc.entity_id
INNER JOIN {field_data_body} fb ON n.nid = fb.entity_id
WHERE  (fc.field_campaign_nid = :db_condition_placeholder_0) 
ORDER BY n.created DESC
LIMIT 6 OFFSET 0; Array
(
    [:db_condition_placeholder_0] =&amp;gt; 10048
)
 in _lf_core_get_news() (line 787 of /var/www/friends/data/www/friends.podari-zhizn.ru/sites/all/modules/custom/life_core/life_core.module).</p><h2>Additional</h2><p>PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT expire, value FROM {semaphore} WHERE name = :name; Array
(
    [:name] =&amp;gt; rules_get_cacheevent_watchdog
)
 in lock_may_be_available() (line 167 of /var/www/friends/data/www/friends.podari-zhizn.ru/includes/lock.inc).</p><hr /><h1>Uncaught exception thrown in shutdown function.</h1><p>PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: DELETE FROM {semaphore} 
WHERE  (value = :db_condition_placeholder_0) ; Array
(
    [:db_condition_placeholder_0] =&amp;gt; 1705503330694528cde19da3.37549524
)
 in lock_release_all() (line 269 of /var/www/friends/data/www/friends.podari-zhizn.ru/includes/lock.inc).</p><hr />