[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (1040) Too many connections (400)
/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/db/mysqliconnection.php:82
#0: Bitrix\Main\DB\MysqliConnection->connectInternal
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/db/mysqliconnection.php:128
#1: Bitrix\Main\DB\MysqliConnection->queryInternal
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/db/connection.php:327
#2: Bitrix\Main\DB\Connection->query
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/orm/query/query.php:3555
#3: Bitrix\Main\ORM\Query\Query->query
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/orm/query/query.php:952
#4: Bitrix\Main\ORM\Query\Query->exec
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/orm/data/datamanager.php:510
#5: Bitrix\Main\ORM\Data\DataManager::getList
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/orm/data/datamanager.php:361
#6: Bitrix\Main\ORM\Data\DataManager::getByPrimary
	/var/www/upravdom/bitrix.core/bitrix/modules/main/lib/orm/data/datamanager.php:376
#7: Bitrix\Main\ORM\Data\DataManager::getById
	/var/www/upravdom/bitrix.core/bitrix/modules/highloadblock/classes/general/cusertypehlblock.php:197
#8: CUserTypeHlblock::getEntityReferences
	/var/www/upravdom/bitrix.core/bitrix/modules/main/classes/general/usertype.php:3195
#9: CUserTypeManager->getEntityReferences
	/var/www/upravdom/bitrix.core/bitrix/modules/highloadblock/lib/highloadblocktable.php:453
#10: Bitrix\Highloadblock\HighloadBlockTable::compileEntity
	/var/www/upravdom/bitrix.public/www/local/php_interface/classes/Config.php:69
#11: Upravdom\Config::setDomainInfo
	/var/www/upravdom/bitrix.public/www/local/php_interface/classes/Config.php:21
#12: Upravdom\Config::init
	/var/www/upravdom/bitrix.public/www/local/php_interface/init.php:62
#13: include_once(string)
	/var/www/upravdom/bitrix.core/bitrix/modules/main/include.php:125
#14: require_once(string)
	/var/www/upravdom/bitrix.core/bitrix/modules/main/include/prolog_before.php:14
#15: require_once(string)
	/var/www/upravdom/bitrix.core/bitrix/modules/main/include/prolog.php:10
#16: require_once(string)
	/var/www/upravdom/bitrix.core/bitrix/header.php:1
#17: require(string)
	/var/www/upravdom/bitrix.public/www/catalog/index.php:2
#18: include_once(string)
	/var/www/upravdom/bitrix.core/bitrix/modules/main/include/urlrewrite.php:160
#19: include_once(string)
	/var/www/upravdom/bitrix.core/bitrix/urlrewrite.php:2