Course list

[LearnException] 
Unknown operation: calendar_view_time (69888)
/sites/arkat.ru/bitrix/modules/learning/classes/general/clearnaccess.php:857
#0: CLearnAccess->GetBitmaskOperationsForAllLessons(array)
	/sites/arkat.ru/bitrix/modules/learning/classes/general/clearnaccess.php:401
#1: CLearnAccess->IsBaseAccess(integer)
	/sites/arkat.ru/bitrix/modules/learning/classes/general/clearnparsepermissionsfromfilter.php:39
#2: CLearnParsePermissionsFromFilter->__construct(array)
	/sites/arkat.ru/bitrix/modules/learning/classes/general/clearnlesson.php:1549
#3: CLearnLesson::GetListUni(array, array, array, integer, integer, array)
	/sites/arkat.ru/bitrix/modules/learning/classes/general/clearnlesson.php:1850
#4: CLearnLesson::GetList(array, array, array, array)
	/sites/arkat.ru/bitrix/modules/learning/classes/general/course.php:41
#5: CCourse::GetList(array, array, array)
	/sites/arkat.ru/bitrix/components/bitrix/learning.course.list/component.php:38
#6: include(string)
	/sites/arkat.ru/bitrix/modules/main/classes/general/component.php:605
#7: CBitrixComponent->__includeComponent()
	/sites/arkat.ru/bitrix/modules/main/classes/general/component.php:664
#8: CBitrixComponent->includeComponent(string, array, NULL)
	/sites/arkat.ru/bitrix/modules/main/classes/general/main.php:1039
#9: CAllMain->IncludeComponent(string, string, array)
	/sites/arkat.ru/en/learning/index.php:8