[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`catalog_vat`.`ID` AS `ID`,
	`catalog_vat`.`RATE` AS `RATE`
FROM `b_catalog_vat` `catalog_vat` 

ORDER BY `ID` ASC
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:3357
#2: Bitrix\Main\ORM\Query\Query->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:825
#3: Bitrix\Main\ORM\Query\Query->exec
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:743
#5: Bitrix\Iblock\Component\Base->initVats
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4045
#6: Bitrix\Iblock\Component\Base->processResultData
	/home/bitrix/www/bitrix/modules/iblock/lib/component/element.php:286
#7: Bitrix\Iblock\Component\Element->processResultData
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4551
#8: Bitrix\Iblock\Component\Base->loadData
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4540
#9: Bitrix\Iblock\Component\Base->initialLoadAction
	/home/bitrix/www/bitrix/modules/iblock/lib/component/element.php:271
#10: Bitrix\Iblock\Component\Element->initialLoadAction
	
#11: call_user_func
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4725
#12: Bitrix\Iblock\Component\Base->doAction
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4743
#13: Bitrix\Iblock\Component\Base->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#14: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#15: CAllMain->IncludeComponent
	/home/bitrix/www/bitrix/templates/e-comexpert_v2/components/w247.catalogs/part/.default/parametric.php:103
#16: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:789
#17: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:884
#18: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:764
#19: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:712
#20: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/bitrix/components/w247.catalogs/part/class.php:222
#21: W247CatalogsComponent->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#22: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#23: CAllMain->IncludeComponent
	/home/bitrix/www/part/index.php:25
#24: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#25: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2