[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`currency_currency`.`CURRENCY` AS `CURRENCY`
FROM `b_catalog_currency` `currency_currency` 

/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:4644
#5: Bitrix\Iblock\Component\Base->getTemplateCurrencies
	/home/bitrix/www/bitrix/modules/iblock/lib/component/element.php:1211
#6: Bitrix\Iblock\Component\Element->editTemplateData
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4757
#7: Bitrix\Iblock\Component\Base->applyTemplateModifications
	/home/bitrix/www/bitrix/templates/e-comexpert_v2/components/bitrix/catalog/brands/bitrix/catalog.element/.default/result_modifier.php:9
#8: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:946
#9: CBitrixComponentTemplate->__IncludeMutatorFile
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:853
#10: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:764
#11: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:712
#12: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4561
#13: Bitrix\Iblock\Component\Base->loadData
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4540
#14: Bitrix\Iblock\Component\Base->initialLoadAction
	/home/bitrix/www/bitrix/modules/iblock/lib/component/element.php:271
#15: Bitrix\Iblock\Component\Element->initialLoadAction
	
#16: call_user_func
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4725
#17: Bitrix\Iblock\Component\Base->doAction
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4743
#18: Bitrix\Iblock\Component\Base->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#19: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#20: CAllMain->IncludeComponent
	/home/bitrix/www/bitrix/templates/e-comexpert_v2/components/bitrix/catalog/brands/element.php:224
#21: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:789
#22: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:884
#23: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:764
#24: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:712
#25: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/bitrix/components/bitrix/catalog/component.php:171
#26: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:605
#27: CBitrixComponent->__includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:680
#28: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#29: CAllMain->IncludeComponent
	/home/bitrix/www/brands/index.php:173
#30: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#31: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2

( ! ) Fatal error: Uncaught Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137
Call Stack
#	Time	Memory	Function	Location
1	2.0367	6462000	Bitrix\Main\Diag\ExceptionHandler->handleException( )	.../exceptionhandler.php:0
( ! ) Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137
Call Stack
#	Time	Memory	Function	Location
1	2.0367	6462000	Bitrix\Main\Diag\ExceptionHandler->handleException( )	.../exceptionhandler.php:0
2	2.0680	6464160	CAllMain::{closure:/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3419-3426}( )	.../main.php:0
3	2.0680	6464184	ob_end_flush ( )	.../main.php:3424
4	2.0680	6468312	CMain->EndBufferContent( )	.../main.php:3424
5	2.0680	6469384	ExecuteModuleEventEx( )	.../main.php:3172
6	2.0681	6468688	Bitrix\Main\Analytics\Counter::onBeforeEndBufferContent( )	.../module.php:480
7	2.0682	6468832	Bitrix\Main\Analytics\SiteSpeed::isIntranetSite( )	.../counter.php:92
8	2.0682	6468832	Bitrix\Main\ORM\Data\DataManager::getList( )	.../sitespeed.php:95
9	2.0682	6470256	Bitrix\Main\ORM\Query\Query->exec( )	.../datamanager.php:500
10	2.0684	6473704	Bitrix\Main\ORM\Query\Query->query( )	.../query.php:825
11	2.0685	6473704	Bitrix\Main\DB\MysqliConnection->query( )	.../query.php:3357
12	2.0685	6473704	Bitrix\Main\DB\MysqliConnection->queryInternal( )	.../connection.php:330