[TypeError] 
array_reverse(): Argument #1 ($array) must be of type array, null given (0)
/home/sasn.ru/www/local/classes/Assistant/Calculation.php:99
#0: array_reverse(NULL, boolean)
	/home/sasn.ru/www/local/classes/Assistant/Calculation.php:99
#1: Local\Assistant\Assistant->getCalculationElements()
	/home/sasn.ru/www/local/components/kvadroteka/assistant.list/class.php:36
#2: Kvadroteka\Components\ElementsList->executeMain()
	/home/sasn.ru/www/bitrix/modules/bex.bbc/lib/basis.php:102
#3: Bex\Bbc\Basis->executeBasis()
	/home/sasn.ru/www/bitrix/modules/bex.bbc/lib/basis.php:127
#4: Bex\Bbc\Basis->executeComponent()
	/home/sasn.ru/www/bitrix/modules/main/classes/general/component.php:660
#5: CBitrixComponent->includeComponent(string, array, NULL, boolean)
	/home/sasn.ru/www/bitrix/modules/main/classes/general/main.php:1072
#6: CAllMain->IncludeComponent(string, string, array, NULL, array)
	/home/sasn.ru/www/moi-raschety/index.php:20
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