.
[Error] 
[] operator not supported for strings (0)
/home/a/assnab/bitrix/public_html/bitrix/modules/iblock/classes/general/iblockproperty.php:34
#0: CAllIBlockProperty::GetList(array, array)
	/home/a/assnab/bitrix/public_html/bitrix/components/bitrix/iblock.element.add.form/component.php:184
#1: include(string)
	/home/a/assnab/bitrix/public_html/bitrix/modules/main/classes/general/component.php:548
#2: CBitrixComponent->__includeComponent()
	/home/a/assnab/bitrix/public_html/bitrix/modules/main/classes/general/component.php:600
#3: CBitrixComponent->includeComponent(string, array, boolean)
	/home/a/assnab/bitrix/public_html/bitrix/modules/main/classes/general/main.php:1035
#4: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/a/assnab/bitrix/public_html/cart/index.php:81