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 p.nid AS nid, p.transaction_id AS transaction_id
FROM 
{lp_payments} p
WHERE  (p.nid = :db_condition_placeholder_0) AND (p.status = :db_condition_placeholder_1) ; Array
(
    [:db_condition_placeholder_0] =&amp;gt; 9875
    [:db_condition_placeholder_1] =&amp;gt; 0
)
 in life_payments_get_helped_count() (line 1387 of /var/www/friends/data/www/friends.podari-zhizn.ru/sites/all/modules/custom/life_core/modules/life_payments/life_payments.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; 209553815969452909822bd5.79892482
)
 in lock_release_all() (line 269 of /var/www/friends/data/www/friends.podari-zhizn.ru/includes/lock.inc).</p><hr />