[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [10.150.16.51]: (1040) Too many connections (400)
/home/www/online.1c.ru/public_html/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/home/www/online.1c.ru/public_html/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/www/online.1c.ru/public_html/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query(string)
	/home/www/online.1c.ru/public_html/bitrix/modules/security/classes/mysql/database.php:118
#3: CSecurityDB::Query(string, string)
	/home/www/online.1c.ru/public_html/bitrix/modules/security/classes/mysql/database.php:53
#4: CSecurityDB::Init(boolean)
	/home/www/online.1c.ru/public_html/bitrix/modules/security/classes/mysql/database.php:110
#5: CSecurityDB::Query(string, string)
	/home/www/online.1c.ru/public_html/bitrix/modules/security/classes/general/antivirus.php:441
#6: CSecurityAntiVirus->dolog()
	/home/www/online.1c.ru/public_html/bitrix/modules/security/classes/general/antivirus.php:600
#7: CSecurityAntiVirus->Analyze(string)
	/home/www/online.1c.ru/public_html/bitrix/modules/security/classes/general/antivirus.php:197
#8: CSecurityAntiVirus::OnEndBufferContent(string)
	/home/www/online.1c.ru/public_html/bitrix/modules/main/classes/general/module.php:490
#9: ExecuteModuleEventEx(array, array)
	/home/www/online.1c.ru/public_html/bitrix/modules/main/classes/general/main.php:3190
#10: CAllMain->EndBufferContent(string)
	/home/www/online.1c.ru/public_html/bitrix/modules/main/classes/general/main.php:3138
#11: CAllMain->EndBufferContentMan()
	/home/www/online.1c.ru/public_html/bitrix/modules/main/include/epilog_after.php:36
#12: require(string)
	/home/www/online.1c.ru/public_html/bitrix/modules/main/include/epilog.php:3
#13: require_once(string)
	/home/www/online.1c.ru/public_html/bitrix/footer.php:4
#14: require(string)
	/home/www/1c-soft.1c.ru/public_html/vendors/index.php:38
#15: include_once(string)
	/home/www/online.1c.ru/public_html/bitrix/modules/main/include/urlrewrite.php:159
#16: include_once(string)
	/home/www/online.1c.ru/public_html/bitrix/urlrewrite.php:2