[Bitrix\Main\DB\ConnectionException] 
Mysql select db error [evrika_market]: MySQL server has gone away (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqlconnection.php:57
#0: Bitrix\Main\DB\MysqlConnection->connectInternal()
	/home/bitrix/www/bitrix/modules/main/lib/db/mysqlconnection.php:103
#1: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:329
#2: Bitrix\Main\DB\Connection->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/entity/query.php:1924
#3: Bitrix\Main\Entity\Query->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/entity/query.php:505
#4: Bitrix\Main\Entity\Query->exec()
	/home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php:255
#5: Bitrix\Main\Entity\DataManager::getList(array)
	/home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php:133
#6: Bitrix\Main\Entity\DataManager::getByPrimary(integer)
	/home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php:144
#7: Bitrix\Main\Entity\DataManager::getById(integer)
	/home/bitrix/www/bitrix/php_interface/init.php:26
#8: oldLinksRedirect()
	/home/bitrix/www/bitrix/php_interface/init.php:5
#9: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include.php:247
#10: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#11: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:9
#12: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#13: require(string)
	/home/bitrix/www/catalog/pc/index.php:1
#14: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#15: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:4