[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`iblock_property_enumeration`.`ID` AS `ID`,
	`iblock_property_enumeration`.`VALUE` AS `VALUE`,
	`iblock_property_enumeration`.`SORT` AS `SORT`,
	`iblock_property_enumeration`.`XML_ID` AS `XML_ID`,
	`iblock_property_enumeration`.`PROPERTY_ID` AS `UALIAS_0`
FROM `b_iblock_property_enum` `iblock_property_enumeration` 

WHERE `iblock_property_enumeration`.`ID` = 776
AND `iblock_property_enumeration`.`PROPERTY_ID` = 311
/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/main/lib/orm/query/query.php:3398
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/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(array)
	/home/bitrix/www/bitrix/modules/iblock/classes/general/iblockelement.php:5867
#5: CAllIBlockElement::GetPropertyValuesArray(array, integer, array)
	/home/bitrix/www/bitrix/modules/iblock/lib/component/elementlist.php:848
#6: Bitrix\Iblock\Component\ElementList->modifyDisplayProperties(integer, array)
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:798
#7: Bitrix\Iblock\Component\Base->initElementList()
	/home/bitrix/www/bitrix/components/bitrix/catalog.section/class.php:580
#8: CatalogSectionComponent->initElementList()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4048
#9: Bitrix\Iblock\Component\Base->processResultData()
	/home/bitrix/www/bitrix/components/bitrix/catalog.section/class.php:92
#10: CatalogSectionComponent->processResultData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4551
#11: Bitrix\Iblock\Component\Base->loadData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/elementlist.php:1232
#12: Bitrix\Iblock\Component\ElementList->loadData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4540
#13: Bitrix\Iblock\Component\Base->initialLoadAction()
	/home/bitrix/www/bitrix/components/bitrix/catalog.section/class.php:334
#14: CatalogSectionComponent->initialLoadAction()
	
#15: call_user_func(array)
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4725
#16: Bitrix\Iblock\Component\Base->doAction()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4743
#17: Bitrix\Iblock\Component\Base->executeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#18: CBitrixComponent->includeComponent(string, array, object, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#19: CAllMain->IncludeComponent(string, string, array, object, array)
	/home/bitrix/www/bitrix/templates/.default/components/bitrix/catalog/main_plate/page_blocks/list_elements_1.php:434
#20: include_once(string)
	/home/bitrix/www/bitrix/templates/.default/components/bitrix/catalog/main_plate/section.php:309
#21: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:789
#22: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:884
#23: CBitrixComponentTemplate->IncludeTemplate(array)
	/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(string)
	/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(string, array, boolean, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#29: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/bitrix/www/ru/catalog/index.php:578
#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:137 Stack trace: #0 /home/bitrix/www/bitrix/modules/main/lib/db/connection.php(330): Bitrix\Main\DB\MysqliConnection->queryInternal('SELECT \n\t`main_...', Array, NULL) #1 /home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php(3398): Bitrix\Main\DB\Connection->query('SELECT \n\t`main_...') #2 /home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php(825): Bitrix\Main\ORM\Query\Query->query('SELECT \n\t`main_...') #3 /home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php(500): Bitrix\Main\ORM\Query\Query->exec() #4 /home/bitrix/www/bitrix/modules/main/lib/analytics/sitespeed.php(95): Bitrix\Main\ORM\Data\DataManager::getList(Array) #5 /home/bitrix/www/bitrix/modules/main/lib/analytics/counter.php(92): Bitrix\Main\Analytics\SiteSpeed::isIntranetSite('ru') #6 /home/bitrix/www/bitrix/modules/main/classes/general/module.php(480): Bit in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137

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/connection.php(330): Bitrix\Main\DB\MysqliConnection->queryInternal('DELETE FROM `b_...', Array, NULL) #1 /home/bitrix/www/bitrix/modules/main/lib/db/connection.php(379): Bitrix\Main\DB\Connection->query('DELETE FROM `b_...', NULL) #2 /home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php(1624): Bitrix\Main\DB\Connection->queryExecute('DELETE FROM `b_...') #3 /home/bitrix/www/bitrix/modules/security/classes/general/session_db.php(100): Bitrix\Main\ORM\Data\DataManager::delete(Array) #4 /home/bitrix/www/bitrix/modules/security/classes/general/session_handler.php(28): CSecuritySessionDB::write('72u6rDj9nygttVz...', 'SESS_AUTH|a:1:{...') #5 [internal function]: CSecuritySessionHandler->write('72u6rDj9nygttVz...', 'SESS_AUTH|a:1:{...') #6 {main} thrown in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137