Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000]: General error: 2013 Lost connection to MySQL server during query: SELECT * FROM {book} b INNER JOIN {menu_links} ml ON b.mlid = ml.mlid WHERE b.nid IN (:nids_0, :nids_1, :nids_2, :nids_3, :nids_4); Array ( [:nids_0] => 145 [:nids_1] => 146 [:nids_2] => 155 [:nids_3] => 156 [:nids_4] => 158 ) in book_node_load() (line 872 of /var/www/ekskursovod.info/public_html/modules/book/book.module).

Additional

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: INSERT INTO {watchdog} (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9); Array ( [:db_insert_placeholder_0] => 0 [:db_insert_placeholder_1] => php [:db_insert_placeholder_2] => %type: !message in %function (line %line of %file). [:db_insert_placeholder_3] => a:6:{s:5:"%type";s:12:"PDOException";s:8:"!message";s:345:"SQLSTATE[HY000]: General error: 2013 Lost connection to MySQL server during query: SELECT * FROM {book} b INNER JOIN {menu_links} ml ON b.mlid = ml.mlid WHERE b.nid IN (:nids_0, :nids_1, :nids_2, :nids_3, :nids_4); Array ( [:nids_0] => 145 [:nids_1] => 146 [:nids_2] => 155 [:nids_3] => 156 [:nids_4] => 158 ) ";s:9:"%function";s:16:"book_node_load()";s:5:"%file";s:62:"/var/www/ekskursovod.info/public_html/modules/book/book.module";s:5:"%line";i:872;s:14:"severity_level";i:3;} [:db_insert_placeholder_4] => 3 [:db_insert_placeholder_5] => [:db_insert_placeholder_6] => http://ekskursovod.info/?page=2 [:db_insert_placeholder_7] => [:db_insert_placeholder_8] => 54.81.183.183 [:db_insert_placeholder_9] => 1527203729 ) in dblog_watchdog() (line 160 of /var/www/ekskursovod.info/public_html/modules/dblog/dblog.module).