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

WHERE `iblock_inherited_property`.`IBLOCK_ID` = 8
LIMIT 0, 1

/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/lib/inheritedproperty/basetemplate.php:145
#5: Bitrix\Iblock\InheritedProperty\BaseTemplate->hasTemplates(object)
	/home/bitrix/www/bitrix/modules/iblock/lib/inheritedproperty/basevalues.php:158
#6: Bitrix\Iblock\InheritedProperty\BaseValues->hasTemplates()
	/home/bitrix/www/bitrix/modules/iblock/lib/inheritedproperty/elementvalues.php:130
#7: Bitrix\Iblock\InheritedProperty\ElementValues->queryValues()
	/home/bitrix/www/bitrix/modules/iblock/lib/inheritedproperty/basevalues.php:104
#8: Bitrix\Iblock\InheritedProperty\BaseValues->getValues()
	/home/bitrix/www/local/components/xca/catalog/component.php:209
#9: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:605
#10: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:680
#11: CBitrixComponent->includeComponent(string, array, NULL, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#12: CAllMain->IncludeComponent(string, string, array)
	/home/bitrix/www/catalog/index.php:13
#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

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('s1') #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('DkqGEvIk1f0qsmA...', 'SESS_AUTH|a:1:{...') #5 [internal function]: CSecuritySessionHandler->write('DkqGEvIk1f0qsmA...', 'SESS_AUTH|a:1:{...') #6 {main} thrown in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137