[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [vspdb1.nlb.by]: (1040) Too many connections (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->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/config/option.php:182
#3: Bitrix\Main\Config\Option::load(string, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:53
#4: Bitrix\Main\Config\Option::get(string, string, string)
	/home/bitrix/www/bitrix/modules/main/lib/httprequest.php:337
#5: Bitrix\Main\HttpRequest->prepareCookie(array)
	/home/bitrix/www/bitrix/modules/main/lib/httprequest.php:63
#6: Bitrix\Main\HttpRequest->__construct(object, array, array, array, array)
	/home/bitrix/www/bitrix/modules/main/lib/httpapplication.php:42
#7: Bitrix\Main\HttpApplication->initializeContext(array)
	/home/bitrix/www/bitrix/modules/main/lib/application.php:122
#8: Bitrix\Main\Application->initializeExtendedKernel(array)
	/home/bitrix/www/bitrix/modules/main/include.php:23
#9: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#10: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#11: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#12: require(string)
	/home/bitrix/www/content/informatsionnye-resursy/elektronnye-informatsionnye-resursy/resursy-natsionalnoy-biblioteki-belarusi/virtualnye-proekty-vystavki-i-kollektsii/virtualnye-proekty-biblioteki/virtual/public_detail.php:2
#13: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#14: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2