Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000]: General error: 2013 Lost connection to MySQL server during query: UPDATE {variable} SET value=:db_update_placeholder_0 WHERE ( (name = :db_condition_placeholder_0) ); Array ( [:db_update_placeholder_0] => b:1; [:db_condition_placeholder_0] => drupal_http_request_fails ) in variable_set() (line 1245 of /app/arduino.vn/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT aah.settings AS settings FROM {advagg_aggregates_hashes} aah WHERE (hash = :db_condition_placeholder_0) ; Array ( [:db_condition_placeholder_0] => NOesQBci7aUJhboX9mdIi6Jf56R3z92ZfrlxWvCiWe0 ) in advagg_get_hash_settings() (line 3557 of /app/arduino.vn/sites/all/modules/advagg/advagg.module).