[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)

				SELECT
					P.ID
					,P.CODE
					,P.TEMPLATE
					,P.ENTITY_TYPE
					,P.ENTITY_ID
					,IP.VALUE
					,IP.SECTION_ID
				FROM
					b_iblock_section_iprop IP
					INNER JOIN b_iblock_iproperty P ON P.ID = IP.IPROP_ID
				WHERE
					IP.IBLOCK_ID = 20
					AND IP.SECTION_ID in (354, 312, 310, 311, 320, 280, 356, 359, 321, 358, 314, 355, 316, 286, 330, 331, 291, 334, 307, 344, 288)
				
/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/iblock/lib/inheritedproperty/sectionvalues.php:116
#2: Bitrix\Iblock\InheritedProperty\SectionValues->queryValues
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/iblock/lib/inheritedproperty/basevalues.php:104
#3: Bitrix\Iblock\InheritedProperty\BaseValues->getValues
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/components/bitrix/catalog.section.list/component.php:297
#4: include(string)
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component.php:605
#5: CBitrixComponent->__includeComponent
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component.php:680
#6: CBitrixComponent->includeComponent
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/main.php:1063
#7: CAllMain->IncludeComponent
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/templates/citrus_aproduction2/components/bitrix/catalog/.default/section.php:34
#8: include(string)
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component_template.php:789
#9: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component_template.php:884
#10: CBitrixComponentTemplate->IncludeTemplate
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component.php:764
#11: CBitrixComponent->showComponentTemplate
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component.php:712
#12: CBitrixComponent->includeComponentTemplate
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/components/bitrix/catalog/component.php:171
#13: include(string)
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component.php:605
#14: CBitrixComponent->__includeComponent
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/component.php:680
#15: CBitrixComponent->includeComponent
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/classes/general/main.php:1063
#16: CAllMain->IncludeComponent
	/home/ati/web/rti-ati.com.ua/public_html/ru/produktsiya/index.php:110
#17: include_once(string)
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/modules/main/include/urlrewrite.php:159
#18: include_once(string)
	/home/ati/web/rti-ati.com.ua/public_html/bitrix/urlrewrite.php:2