[Error] 
Non-static method CSaleUser::_Add() cannot be called statically (0)
/home/bitrix/ext_www/music-zone.store/bitrix/modules/sale/mysql/basket.php:1005
#0: CSaleUser::Add
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/sale/general/basket.php:3833
#1: CAllSaleUser::GetID
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/sale/general/basket.php:1798
#2: CAllSaleBasket::Init
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/sale/general/basket.php:1810
#3: CAllSaleBasket::GetBasketUserID
	/home/bitrix/ext_www/music-zone.store/bitrix/components/krayt/sale.basket.basket.small/component.php:38
#4: include(string)
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/main/classes/general/component.php:605
#5: CBitrixComponent->__includeComponent
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/main/classes/general/component.php:664
#6: CBitrixComponent->includeComponent
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/main/classes/general/main.php:1039
#7: CAllMain->IncludeComponent
	/home/bitrix/ext_www/music-zone.store/local/templates/okshop/header.php:296
#8: include_once(string)
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/main/include/prolog_after.php:106
#9: require(string)
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/main/include/prolog.php:11
#10: require_once(string)
	/home/bitrix/ext_www/music-zone.store/bitrix/header.php:1
#11: require(string)
	/home/bitrix/ext_www/music-zone.store/catalog/index.php:2
#12: include_once(string)
	/home/bitrix/ext_www/music-zone.store/bitrix/modules/main/include/urlrewrite.php:167
#13: include_once(string)
	/home/bitrix/ext_www/music-zone.store/bitrix/urlrewrite.php:2