S2_Nodes_Expert_Exception: Type "flat_sale?realty_type=flat_sale" not found in realty // trace

exception 'S2_Nodes_Expert_Exception' with message 'Type "flat_sale?realty_type=flat_sale" not found in realty' in /storage/user/webuser/data/www/admin.zamrealty.ru/private_php/_core/Main.php:4728
Stack trace:
#0 /storage/user/webuser/data/www/admin.zamrealty.ru/private_php/_core/Main.php(12283): S2_Nodes_Expert->setTypes('flat_sale?realt...')
#1 /storage/user/webuser/data/www/admin.zamrealty.ru/private_php/_core/Main.php(6878): S2_Nodes_Module_Common->getNodes('Removed != 1 OR...', 'flat_sale?realt...', 'NType, StatId, ...', 3, NULL, 1, NULL, NULL, 2)
#2 {PATH_PRV}/_mods/realty/list.php(27): s2GetNodes(Array)
#3 /storage/user/webuser/data/www/admin.zamrealty.ru/private_php/_core/Main.php(2998): include('/storage/user/w...')
#4 /storage/user/webuser/data/www/admin.zamrealty.ru/private_php/_core/Main.php(2636): S2_Method_Processor->display()
#5 /storage/user/webuser/data/www/admin.zamrealty.ru/private_php/_core/main.d.php(8): S2_Method->Show()
#6 {PATH_PUB}/_index.php(12): require('/storage/user/w...')
#7 {main}

Simbix Framework/2.1.6, Apache/2.4.41 (Ubuntu) Aborting...