[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (1040) Too many connections (400)
/var/www/znaemigraem.ru/web/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/var/www/znaemigraem.ru/web/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->queryInternal(string, NULL, NULL)
	/var/www/znaemigraem.ru/web/bitrix/modules/main/lib/db/connection.php:329
#2: Bitrix\Main\DB\Connection->query(string, NULL, integer, integer)
	/var/www/znaemigraem.ru/web/bitrix/modules/main/lib/db/connection.php:357
#3: Bitrix\Main\DB\Connection->queryScalar(string)
	/var/www/znaemigraem.ru/web/bitrix/modules/security/lib/session.php:111
#4: Bitrix\Security\SessionTable::lock(string, integer)
	/var/www/znaemigraem.ru/web/bitrix/modules/security/classes/general/session_db.php:52
#5: CSecuritySessionDB::read(string)
	
#6: session_start()
	/var/www/znaemigraem.ru/web/bitrix/modules/main/include.php:277
#7: require_once(string)
	/var/www/znaemigraem.ru/web/bitrix/modules/main/include/prolog_before.php:14
#8: require_once(string)
	/var/www/znaemigraem.ru/web/bitrix/modules/main/include/prolog.php:10
#9: require_once(string)
	/var/www/znaemigraem.ru/web/bitrix/header.php:1
#10: require(string)
	/var/www/znaemigraem.ru/web/igroteka/index.php:1
#11: include_once(string)
	/var/www/znaemigraem.ru/web/bitrix/modules/main/include/urlrewrite.php:159
#12: include_once(string)
	/var/www/znaemigraem.ru/web/bitrix/urlrewrite.php:2
Fatal error: Uncaught exception 'Bitrix\Main\DB\ConnectionException' with message 'Mysql connect error [localhost]: (1040) Too many connections' in /var/www/znaemigraem.ru/web/bitrix/modules/main/lib/db/mysqliconnection.php on line 65 Call Stack: 1.2793 14653864 1. Bitrix\Main\Diag\ExceptionHandler->handleException() /var/www/znaemigraem.ru/web/bitrix/modules/main/lib/diag/exceptionhandler.php:0 Bitrix\Main\DB\ConnectionException: Mysql connect error [localhost]: (1040) Too many connections in /var/www/znaemigraem.ru/web/bitrix/modules/main/lib/db/mysqliconnection.php on line 65 Call Stack: 1.2793 14653864 1. Bitrix\Main\Diag\ExceptionHandler->handleException() /var/www/znaemigraem.ru/web/bitrix/modules/main/lib/diag/exceptionhandler.php:0 1.2810 14732392 2. session_write_close() /var/www/znaemigraem.ru/web/bitrix/modules/main/lib/diag/exceptionhandler.php:0 1.2810 14732816 3. CSecuritySessionDB::write() /var/www/znaemigraem.ru/web/bitrix/modules/main/lib/diag/exceptionhandler.php:0 1.2811 14733488 4. Bitrix\Main\Entity\DataManager::delete() /var/www/znaemigraem.ru/web/bitrix/modules/security/classes/general/session_db.php:92