[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SET NAMES 'utf8'
/var/www/html/bitrix/modules/main/lib/db/mysqliconnection.php:146
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/var/www/html/bitrix/modules/main/lib/db/connection.php:327
#1: Bitrix\Main\DB\Connection->query
	/var/www/html/bitrix/modules/main/lib/db/connection.php:376
#2: Bitrix\Main\DB\Connection->queryExecute
	/var/www/html/local/php_interface/after_connect_d7.php:2
#3: include(string)
	/var/www/html/bitrix/modules/main/lib/db/connection.php:1016
#4: Bitrix\Main\DB\Connection->afterConnected
	/var/www/html/bitrix/modules/main/lib/db/mysqliconnection.php:101
#5: Bitrix\Main\DB\MysqliConnection->connectInternal
	/var/www/html/bitrix/modules/main/lib/data/connection.php:53
#6: Bitrix\Main\Data\Connection->getResource
	/var/www/html/bitrix/modules/main/classes/general/database.php:283
#7: CAllDatabase->DoConnect
	/var/www/html/bitrix/modules/main/classes/mysql/database_mysqli.php:78
#8: CDatabase->ForSql
	/var/www/html/bitrix/modules/main/classes/general/sqlwhere.php:713
#9: CAllSQLWhere->addStringFilter
	/var/www/html/bitrix/modules/main/classes/general/sqlwhere.php:376
#10: CAllSQLWhere->GetQueryEx
	/var/www/html/bitrix/modules/main/classes/general/sqlwhere.php:261
#11: CAllSQLWhere->GetQuery
	/var/www/html/bitrix/modules/main/lib/orm/query/query.php:2231
#12: Bitrix\Main\ORM\Query\Query->buildWhere
	/var/www/html/bitrix/modules/main/lib/orm/query/query.php:2461
#13: Bitrix\Main\ORM\Query\Query->buildQuery
	/var/www/html/bitrix/modules/main/lib/orm/query/query.php:933
#14: Bitrix\Main\ORM\Query\Query->exec
	/var/www/html/bitrix/modules/main/lib/orm/data/datamanager.php:513
#15: Bitrix\Main\ORM\Data\DataManager::getList
	/var/www/html/bitrix/modules/main/lib/site.php:150
#16: Bitrix\Main\SiteTable::getByDomain
	/var/www/html/bitrix/modules/main/lib/httpcontext.php:100
#17: Bitrix\Main\HttpContext->initializeCulture
	/var/www/html/bitrix/modules/main/include.php:32
#18: require_once(string)
	/var/www/html/bitrix/modules/main/include/prolog_before.php:14
#19: require_once(string)
	/var/www/html/bitrix/modules/main/include/prolog.php:10
#20: require_once(string)
	/var/www/html/bitrix/header.php:1
#21: require(string)
	/var/www/html/catalog/index.php:2
#22: include_once(string)
	/var/www/html/bitrix/modules/main/include/urlrewrite.php:184
#23: include_once(string)
	/var/www/html/bitrix/urlrewrite.php:2
----------