Календарь событий

[Error] 
Class 'CEventCalendar' not found (0)
/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/templates/.default/components/bitrix/calendar.grid/template1/template.php:3
#0: include
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/component_template.php:720
#1: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/component_template.php:815
#2: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/component.php:735
#3: CBitrixComponent->showComponentTemplate()
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/component.php:683
#4: CBitrixComponent->includeComponentTemplate()
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/components/bitrix/calendar.grid/component.php:61
#5: include(string)
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/component.php:594
#6: CBitrixComponent->__includeComponent()
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/component.php:653
#7: CBitrixComponent->includeComponent(string, array, NULL)
	/home/bitrix/ext_www/grandtour-nsk.ru/bitrix/modules/main/classes/general/main.php:1038
#8: CAllMain->IncludeComponent(string, string, array)
	/home/bitrix/ext_www/grandtour-nsk.ru/events.php:8