[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`highloadblock_highload_block`.`ID` AS `ID`,
	`highloadblock_highload_block`.`NAME` AS `NAME`,
	`highloadblock_highload_block`.`TABLE_NAME` AS `TABLE_NAME`
FROM `b_hlblock_entity` `highloadblock_highload_block` 

WHERE `highloadblock_highload_block`.`ID` = 3
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:3193
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:806
#3: Bitrix\Main\ORM\Query\Query->exec()
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:467
#4: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:328
#5: Bitrix\Main\ORM\Data\DataManager::getByPrimary(array)
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:343
#6: Bitrix\Main\ORM\Data\DataManager::getById(integer)
	/home/bitrix/www/local/php_interface/fsa.php:492
#7: FSA::buildCountryList()
	/home/bitrix/www/local/php_interface/fsa.php:466
#8: FSA::setDomainData()
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:475
#9: ExecuteModuleEventEx(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3481
#10: CAllMain::PrologActions()
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:16
#11: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#12: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#13: require(string)
	/home/bitrix/www/catalog/index.php:2
#14: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#15: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2