When I try to create a new host the following error occurs:
Incorrect value "p" for unsigned int field "proxy_hostid". [hosts.php:468 ? CAPIObject->create() ? CAPIObject->__call() ? czbxrpc::call() ? czbxrpc::callAPI() ? call_user_func() ? CHost->create() ? DB::insert() ? DB::checkValueTypes() ? DB::exception() in /usr/share/zabbix/include/classes/db/DB.php:352]

And when I try to do update:

No permissions to referred object or it does not exist! [hosts.php:482 ? CAPIObject->update() ? CAPIObject->__call() ? czbxrpc::call() ? czbxrpc::callAPI() ? call_user_func() ? CHost->update() ? CHost->checkInput() ? CZBXAPI::exception() in /usr/share/zabbix/api/classes/CHost.php:688]

Changed from version 2.0.8 to 2.2.4