[Error] 
Class 'Bitrix\Main\Update\UserSelectorStepper' not found (0)
/home/p554420/www/tattoo-festival.ru/bitrix/modules/main/classes/mysql/agent.php(163) : eval()'d code:1
#0: eval
	/home/p554420/www/tattoo-festival.ru/bitrix/modules/main/classes/mysql/agent.php:163
#1: CAgent::ExecuteAgents(string)
	/home/p554420/www/tattoo-festival.ru/bitrix/modules/main/classes/mysql/agent.php:40
#2: CAgent::CheckAgents()
	/home/p554420/www/tattoo-festival.ru/bitrix/modules/main/include.php:264
#3: require_once(string)
	/home/p554420/www/tattoo-festival.ru/bitrix/modules/main/include/prolog_before.php:14
#4: require_once(string)
	/home/p554420/www/tattoo-festival.ru/bitrix/modules/main/include/prolog.php:10
#5: require_once(string)
	/home/p554420/www/tattoo-festival.ru/bitrix/header.php:1
#6: require(string)
	/home/p554420/www/tattoo-festival.ru/spb/en/registratsiya-na-festival/refpass.php:3