[Error] 
Call to a member function GetID() on null (0)
/home/bitrix/www/bitrix/modules/sale/lib/shipment.php:1531
#0: Bitrix\Sale\Shipment->onFieldModify(string, string, string)
	/home/bitrix/www/bitrix/modules/sale/lib/internals/entity.php:201
#1: Bitrix\Sale\Internals\Entity->setField(string, string)
	/home/bitrix/www/bitrix/modules/sale/lib/shipment.php:684
#2: Bitrix\Sale\Shipment->setField(string, string)
	/home/bitrix/www/bitrix/modules/sale/lib/compatible/ordercompatibility.php:2373
#3: Bitrix\Sale\Compatible\OrderCompatibility::cancel(integer, string, string)
	/home/bitrix/www/bitrix/modules/sale/general/order.php:2272
#4: CAllSaleOrder::CancelOrder(integer, string, string)
	/home/bitrix/www/bitrix/php_interface/init.php:1063
#5: checkNotAgreedOrders()
	/home/bitrix/www/bitrix/modules/main/classes/mysql/agent.php(163) : eval()'d code:1
#6: eval
	/home/bitrix/www/bitrix/modules/main/classes/mysql/agent.php:163
#7: CAgent::ExecuteAgents(string)
	/home/bitrix/www/bitrix/modules/main/classes/mysql/agent.php:40
#8: CAgent::CheckAgents()
	/home/bitrix/www/bitrix/modules/main/include.php:264
#9: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#10: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#11: require_once(string)
	/home/bitrix/www/bitrix/header.php:7
#12: require(string)
	/home/bitrix/www/catalog/index.php:2
#13: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#14: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2