[Error] 
Call to a member function GetID() on string (0)
/var/www/cishop.ru/web/bitrix/modules/sale/lib/payment.php:414
#0: Bitrix\Sale\Payment->onFieldModify
	/var/www/cishop.ru/web/bitrix/modules/sale/lib/internals/entity.php:279
#1: Bitrix\Sale\Internals\Entity->setField
	/var/www/cishop.ru/web/bitrix/modules/sale/lib/payment.php:1002
#2: Bitrix\Sale\Payment->setField
	/var/www/cishop.ru/web/bitrix/modules/sale/lib/payment.php:917
#3: Bitrix\Sale\Payment->setPaid
	/var/www/cishop.ru/web/local/php_interface/lib/Assist/Assist.php:141
#4: gor\Assist\Assist->changeOrderPayed
	/var/www/cishop.ru/web/local/php_interface/lib/Assist/Assist.php:104
#5: gor\Assist\Assist->processRecord
	/var/www/cishop.ru/web/local/php_interface/lib/Assist/Assist.php:172
#6: gor\Assist\Assist->syncStatuses
	/var/www/cishop.ru/web/local/php_interface/lib/Assist/AssistAgent.php:20
#7: gor\Assist\AssistAgent::Agent
	/var/www/cishop.ru/web/bitrix/modules/main/classes/mysql/agent.php(168) : eval()'d code:1
#8: eval
	/var/www/cishop.ru/web/bitrix/modules/main/classes/mysql/agent.php:168
#9: CAgent::ExecuteAgents
	/var/www/cishop.ru/web/bitrix/modules/main/classes/mysql/agent.php:40
#10: CAgent::CheckAgents
	/var/www/cishop.ru/web/bitrix/modules/main/include.php:271
#11: require_once(string)
	/var/www/cishop.ru/web/bitrix/modules/main/include/prolog_before.php:14
#12: require_once(string)
	/var/www/cishop.ru/web/bitrix/modules/main/include/prolog.php:10
#13: require_once(string)
	/var/www/cishop.ru/web/bitrix/header.php:1
#14: require_once(string)
	/var/www/cishop.ru/web/catalog/index.php:1
#15: include_once(string)
	/var/www/cishop.ru/web/bitrix/modules/main/include/urlrewrite.php:159
#16: include_once(string)
	/var/www/cishop.ru/web/bitrix/urlrewrite.php:2