[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (23) Out of resources when opening file '/tmp/MLWvm4WT' (OS errno 24 - Too many open files) (400)
delete from b_sec_session where TIMESTAMP_X < DATE_ADD(NOW(), INTERVAL -14400 SECOND)
/var/www/bitrix_business/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/var/www/bitrix_business/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string, NULL)
	/var/www/bitrix_business/modules/main/lib/db/connection.php:379
#2: Bitrix\Main\DB\Connection->queryExecute(string)
	/var/www/bitrix_business/modules/security/lib/session.php:236
#3: Bitrix\Security\SessionTable::deleteOlderThan(integer)
	/var/www/bitrix_business/modules/security/classes/general/session_db.php:128
#4: CSecuritySessionDB::gc(integer)
	
#5: session_start()
	/var/www/bitrix_business/modules/main/include.php:281
#6: require_once(string)
	/var/www/bitrix_business/modules/main/include/prolog_before.php:14
#7: require_once(string)
	/var/www/bitrix_business/modules/main/include/prolog.php:10
#8: require_once(string)
	/var/www/bitrix_business/header.php:1
#9: require(string)
	/var/www/voltag.ru/catalog/list.php:2
#10: include_once(string)
	/var/www/bitrix_business/modules/main/include/urlrewrite.php:159
#11: include_once(string)
	/var/www/bitrix_business/urlrewrite.php:2