[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`w247_catalogs_appliance_d_b`.`PRODUCT_ID` AS `PRODUCT_ID`,
	`w247_catalogs_appliance_d_b`.`ID` AS `UALIAS_0`
FROM `w247_appliance_2` `w247_catalogs_appliance_d_b` 

WHERE (
	UPPER(`w247_catalogs_appliance_d_b`.`BRAND`) like upper('continental')
	AND `w247_catalogs_appliance_d_b`.`MODEL` = '0'
	AND `w247_catalogs_appliance_d_b`.`MODIFICATION` = '0'
)
OR (
	UPPER(`w247_catalogs_appliance_d_b`.`BRAND`) like upper('continental')
	AND UPPER(`w247_catalogs_appliance_d_b`.`MODEL`) like upper('continental_continelzd129')
	AND `w247_catalogs_appliance_d_b`.`MODIFICATION` = '0'
)
OR (
	UPPER(`w247_catalogs_appliance_d_b`.`BRAND`) like upper('continental')
	AND UPPER(`w247_catalogs_appliance_d_b`.`MODEL`) like upper('continental_continelzd129')
	AND `w247_catalogs_appliance_d_b`.`MODIFICATION` = '0'
)
OR (
	UPPER(`w247_catalogs_appliance_d_b`.`BRAND`) like upper('continental')
	AND UPPER(`w247_catalogs_appliance_d_b`.`MODEL`) like upper('continental_continelzd129')
)
/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/local/components/w247.catalogs/catalog/templates/.default/section.php:192
#5: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:789
#6: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:884
#7: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:764
#8: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:712
#9: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/local/components/w247.catalogs/catalog/class.php:268
#10: W247CatalogsComponent->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#11: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#12: CAllMain->IncludeComponent
	/home/bitrix/www/catalog/index.php:234
#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