[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`page_cache`.`ID` AS `ID`,
	`page_cache`.`UF_CITY_FROM` AS `UF_CITY_FROM`,
	`page_cache`.`UF_CITY_TO` AS `UF_CITY_TO`,
	`page_cache`.`UF_DELIVERY` AS `UF_DELIVERY`,
	`page_cache`.`UF_DATA` AS `UF_DATA`
FROM `page_cache` `page_cache` 

WHERE `page_cache`.`UF_CITY_FROM` = 44
AND `page_cache`.`UF_CITY_TO` = 1917
AND `page_cache`.`UF_DELIVERY` = 29
LIMIT 0, 1

/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/query/query.php:3304
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/query/query.php:816
#3: Bitrix\Main\ORM\Query\Query->exec()
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/data/datamanager.php:410
#5: Bitrix\Main\ORM\Data\DataManager::getRow(array)
	/var/www/www-root/data/www/test.vse-dostavki.ru/local/lib/Calculate.php:39
#6: Calculate->checkCache()
	/var/www/www-root/data/www/test.vse-dostavki.ru/local/lib/Calculate.php:47
#7: Calculate->getCache()
	/var/www/www-root/data/www/test.vse-dostavki.ru/local/components/custom/calc/class.php:529
#8: CCalcComponent->calculate(array, array, NULL)
	/var/www/www-root/data/www/test.vse-dostavki.ru/local/components/custom/calc/component.php:58
#9: include(string)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/classes/general/component.php:605
#10: CBitrixComponent->__includeComponent()
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/classes/general/component.php:103
#11: CBitrixComponent->executeComponent()
	/var/www/www-root/data/www/test.vse-dostavki.ru/local/components/custom/calc/class.php:133
#12: CCalcComponent->executeComponent()
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/classes/general/component.php:649
#13: CBitrixComponent->includeComponent(string, array, NULL)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/classes/general/main.php:1039
#14: CAllMain->IncludeComponent(string, string, array)
	/var/www/www-root/data/www/test.vse-dostavki.ru/calc/index.php:11
#15: include_once(string)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/include/urlrewrite.php:159
#16: include_once(string)
	/var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/urlrewrite.php:2

Fatal error: Uncaught Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/db/mysqliconnection.php:137 Stack trace: #0 /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/db/connection.php(330): Bitrix\Main\DB\MysqliConnection->queryInternal('SELECT \n\t`main_...', Array, NULL) #1 /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/query/query.php(3304): Bitrix\Main\DB\Connection->query('SELECT \n\t`main_...') #2 /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/query/query.php(816): Bitrix\Main\ORM\Query\Query->query('SELECT \n\t`main_...') #3 /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/orm/data/datamanager.php(500): Bitrix\Main\ORM\Query\Query->exec() #4 /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/analytics/sitespeed.php(95): Bitrix\Main\ORM\Data\DataManager::getList(Array) #5 /var/www/www in /var/www/www-root/data/www/test.vse-dostavki.ru/bitrix/modules/main/lib/db/mysqliconnection.php on line 137