[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (1040) Too many connections (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:82
#0: Bitrix\Main\DB\MysqliConnection->connectInternal
	/home/bitrix/www/bitrix/modules/main/lib/data/connection.php:53
#1: Bitrix\Main\Data\Connection->getResource
	/home/bitrix/www/bitrix/modules/main/classes/general/database.php:283
#2: CAllDatabase->DoConnect
	/home/bitrix/www/bitrix/modules/main/classes/mysql/database.php:94
#3: CDatabaseMysql->Query
	/home/bitrix/www/bitrix/modules/cluster/classes/mysql/slave.php:412
#4: CClusterSlave::GetList
	/home/bitrix/www/bitrix/modules/cluster/classes/mysql/slave.php:492
#5: CClusterSlave::GetRandomNode
	/home/bitrix/www/bitrix/modules/main/lib/data/connectionpool.php:242
#6: Bitrix\Main\Data\ConnectionPool->createSlaveConnection
	/home/bitrix/www/bitrix/modules/main/lib/data/connectionpool.php:180
#7: Bitrix\Main\Data\ConnectionPool->getSlaveConnection
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:315
#8: Bitrix\Main\DB\Connection->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:3558
#9: Bitrix\Main\ORM\Query\Query->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:952
#10: Bitrix\Main\ORM\Query\Query->exec
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:513
#11: Bitrix\Main\ORM\Data\DataManager::getList
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:364
#12: Bitrix\Main\ORM\Data\DataManager::getByPrimary
	/home/bitrix/www/bitrix/modules/main/include.php:68
#13: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#14: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#15: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#16: require(string)
	/home/bitrix/www/catalog/index.php:2
#17: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:174
#18: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2
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