[Error] 
Class 'CCalendarSync' not found (0)
/var/www/ms_prod/data/www/httpdocs/bitrix/modules/main/classes/mysql/agent.php(161) : eval()'d code:1
#0: eval
	/var/www/ms_prod/data/www/httpdocs/bitrix/modules/main/classes/mysql/agent.php:161
#1: CAgent::ExecuteAgents(string)
	/var/www/ms_prod/data/www/httpdocs/bitrix/modules/main/classes/mysql/agent.php:38
#2: CAgent::CheckAgents()
	/var/www/ms_prod/data/www/httpdocs/bitrix/modules/main/include.php:271
#3: require_once(string)
	/var/www/ms_prod/data/www/httpdocs/bitrix/modules/main/include/prolog_before.php:14
#4: require_once(string)
	/var/www/ms_prod/data/www/httpdocs/bitrix/modules/main/include/prolog.php:10
#5: require_once(string)
	/var/www/ms_prod/data/www/httpdocs/bitrix/header.php:1
#6: require(string)
	/var/www/ms_prod/data/www/httpdocs/index.php:2