[Bitrix\Main\DB\ConnectionException] 
Mysql connect error: Too many connections (400)
#0: Bitrix\Main\DB\MysqlConnection->connectInternal()
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/lib/db/mysqlconnection.php:74
#1: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/lib/db/connection.php:235
#2: Bitrix\Main\DB\Connection->query(string)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/lib/config/option.php:150
#3: Bitrix\Main\Config\Option::load(string, NULL)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/lib/config/option.php:36
#4: Bitrix\Main\Config\Option::get(string, string, integer, boolean)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/classes/general/option.php:30
#5: CAllOption::GetOptionString(string, string, integer, boolean)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/classes/general/option.php:58
#6: CAllOption::GetOptionInt(string, string, integer)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/bitrix/modules/main/include/mainpage.php:3
#7: require(string)
	/var/www/invest-lenkub/data/www/invest-lenkub.ru/index.php:3