[Error] 
Undefined constant "CACHED_b_task" (0)
/home/bitrix/www/bitrix/modules/main/classes/general/task.php:183
#0: CAllTask::GetList
	/home/bitrix/www/bitrix/modules/main/classes/general/task.php:519
#1: CAllTask::GetIdByLetter
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:2172
#2: CAllMain->GetFileAccessPermission
	/home/bitrix/www/bitrix/modules/main/classes/general/user.php:4734
#3: CAllUser::GetFileOperations
	/home/bitrix/www/bitrix/modules/main/classes/general/user.php:4771
#4: CAllUser->CanDoFileOperation
	/home/bitrix/www/bitrix/modules/main/include.php:555
#5: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:19
#6: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#7: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#8: require(string)
	/home/bitrix/www/catalog/index.php:1
#9: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:184
#10: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2
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