[Bitrix\Main\DB\SqlQueryException]
Mysql query error: MySQL server has gone away (400)
SELECT * FROM `pages_hash` LIMIT 0
/home/bitrix/www/bitrix/modules/main/lib/db/mysqlconnection.php:116
#0: Bitrix\Main\DB\MysqlConnection->queryInternal(string)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqlcommonconnection.php:132
#1: Bitrix\Main\DB\MysqlCommonConnection->getTableFields(string)
/home/bitrix/www/bitrix/modules/main/lib/db/sqlhelper.php:305
#2: Bitrix\Main\DB\SqlHelper->prepareUpdate(string, array)
/home/bitrix/www/bitrix/modules/highloadblock/lib/datamanager.php:236
#3: Bitrix\Highloadblock\DataManager::update(string, array)
/home/bitrix/www/bitrix/modules/abudagov.lastmodified/include.php:118
#4: CAbudagovLastModified->updateHash(string, array)
/home/bitrix/www/bitrix/modules/abudagov.lastmodified/include.php:219
#5: CAbudagovLastModified::setLastModified(string)
#6: call_user_func_array(array, array)
/home/bitrix/www/bitrix/modules/main/classes/general/module.php:490
#7: ExecuteModuleEventEx(array, array)
/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3257
#8: CAllMain->EndBufferContent(string)
/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3197
#9: CAllMain->EndBufferContentMan()
/home/bitrix/www/bitrix/modules/main/include/epilog_after.php:36
#10: require(string)
/home/bitrix/www/bitrix/modules/main/include/epilog.php:3
#11: require_once(string)
/home/bitrix/www/bitrix/footer.php:4
#12: require(string)
/home/bitrix/www/catalog/index.php:255
#13: include_once(string)
/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#14: include_once(string)
/home/bitrix/www/bitrix/urlrewrite.php:2
Fatal error: Uncaught exception 'Bitrix\Main\DB\SqlQueryException' with message 'Mysql query error: MySQL server has gone away' in /home/bitrix/www/bitrix/modules/main/lib/db/mysqlconnection.php:116
Stack trace:
#0 /home/bitrix/www/bitrix/modules/main/lib/db/mysqlcommonconnection.php(132): Bitrix\Main\DB\MysqlConnection->queryInternal('SELECT * FROM `...')
#1 /home/bitrix/www/bitrix/modules/main/lib/db/connection.php(715): Bitrix\Main\DB\MysqlCommonConnection->getTableFields('b_sec_session')
#2 /home/bitrix/www/bitrix/modules/main/lib/db/sqlhelper.php(362): Bitrix\Main\DB\Connection->getTableField('b_sec_session', 'SESSION_ID')
#3 /home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php(815): Bitrix\Main\DB\SqlHelper->prepareAssignment('b_sec_session', 'SESSION_ID', 'F9IHITmXSRbMI56...')
#4 /home/bitrix/www/bitrix/modules/security/classes/general/session_db.php(87): Bitrix\Main\Entity\DataManager::delete('F9IHITmXSRbMI56...')
#5 [internal function]: CSecuritySessionDB::write('F9IHITmXSRbMI56...', 'SESS_AUTH|a:1:{.. in /home/bitrix/www/bitrix/modules/main/lib/db/mysqlconnection.php on line 116