[Error] 
Call to undefined function mysql_connect() (0)
/var/www/op71/bitrix/modules/security/classes/mysql/database.php:21
#0: CSecurityDB::Init(boolean)
	/var/www/op71/bitrix/modules/security/classes/mysql/database.php:100
#1: CSecurityDB::Query(string, string)
	/var/www/op71/bitrix/modules/security/classes/general/session.php:48
#2: CSecuritySession::CleanUpAgent()
	/var/www/op71/bitrix/modules/main/classes/mysql/agent.php(162) : eval()'d code:1
#3: eval
	/var/www/op71/bitrix/modules/main/classes/mysql/agent.php:162
#4: CAgent::ExecuteAgents(string)
	/var/www/op71/bitrix/modules/main/classes/mysql/agent.php:40
#5: CAgent::CheckAgents()
	/var/www/op71/bitrix/modules/main/include.php:266
#6: require_once(string)
	/var/www/op71/bitrix/modules/main/include/prolog_before.php:14
#7: require_once(string)
	/var/www/op71/bitrix/modules/main/include/prolog.php:10
#8: require_once(string)
	/var/www/op71/bitrix/header.php:1
#9: require(string)
	/var/www/op71/news_nko/index.php:2