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[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
				FROM
					b_iblock_section_iprop IP
					INNER JOIN b_iblock_iproperty P ON P.ID = IP.IPROP_ID
				WHERE
					IP.IBLOCK_ID = 9
					AND IP.SECTION_ID = 321
			
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/home/bitrix/www/bitrix/modules/iblock/lib/inheritedproperty/sectionvalues.php:109
#2: Bitrix\Iblock\InheritedProperty\SectionValues->queryValues()
	/home/bitrix/www/bitrix/modules/iblock/lib/inheritedproperty/basevalues.php:100
#3: Bitrix\Iblock\InheritedProperty\BaseValues->getValues()
	/home/bitrix/www/bitrix/components/bitrix/catalog.section/class.php:221
#4: CatalogSectionComponent->initSectionProperties()
	/home/bitrix/www/bitrix/components/bitrix/catalog.section/class.php:89
#5: CatalogSectionComponent->processResultData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:3976
#6: Bitrix\Iblock\Component\Base->loadData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/elementlist.php:1058
#7: Bitrix\Iblock\Component\ElementList->loadData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:3965
#8: Bitrix\Iblock\Component\Base->initialLoadAction()
	/home/bitrix/www/bitrix/components/bitrix/catalog.section/class.php:327
#9: CatalogSectionComponent->initialLoadAction()
	
#10: call_user_func(array)
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4150
#11: Bitrix\Iblock\Component\Base->doAction()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4168
#12: Bitrix\Iblock\Component\Base->executeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:638
#13: CBitrixComponent->includeComponent(string, array, object)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#14: CAllMain->IncludeComponent(string, string, array, object)
	/home/bitrix/www/bitrix/templates/prohome/components/bitrix/catalog/gopro/section.php:400
#15: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:720
#16: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:815
#17: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:735
#18: CBitrixComponent->showComponentTemplate()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:683
#19: CBitrixComponent->includeComponentTemplate(string)
	/home/bitrix/www/bitrix/components/bitrix/catalog/component.php:171
#20: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:594
#21: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:653
#22: CBitrixComponent->includeComponent(string, array, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#23: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/bitrix/www/catalog/index.php:1253
#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

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:137 Stack trace: #0 /home/bitrix/www/bitrix/modules/main/lib/db/mysqlcommonconnection.php(132): Bitrix\Main\DB\MysqliConnection->queryInternal('SELECT * FROM `...') #1 /home/bitrix/www/bitrix/modules/main/lib/db/connection.php(716): Bitrix\Main\DB\MysqlCommonConnection->getTableFields('b_sec_session') #2 /home/bitrix/www/bitrix/modules/main/lib/db/sqlhelper.php(387): Bitrix\Main\DB\Connection->getTableField('b_sec_session', 'SESSION_ID') #3 /home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php(974): Bitrix\Main\DB\SqlHelper->prepareAssignment('b_sec_session', 'SESSION_ID', 'snn5kXCXELZltN2...') #4 /home/bitrix/www/bitrix/modules/security/classes/general/session_db.php(92): Bitrix\Main\Entity\DataManager::delete(Array) #5 [internal function]: CSecuritySessionDB::write('snn5kXCXELZltN2...', 'SESS_AUTH|a:1:{...') #6 [internal function]: sess in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137