[Error] 
Call to undefined function TrimUnsafe() (0)
/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1806
#0: CAllMain->GetFileAccessPermission(string, array, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/user.php:3369
#1: CAllUser::GetFileOperations(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/user.php:3397
#2: CAllUser->CanDoFileOperation(string, array)
	/home/bitrix/www/bitrix/modules/main/include.php:577
#3: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#4: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#5: require_once(string)
	/home/bitrix/www/bitrix/header.php:14
#6: require(string)
	/home/bitrix/www/project/material_sten_bloki/index.php:2