Sending: {"auth":"c65d01d2e85607193734e6b7cfdd66be","method":"user.logout","id":2,"params":{},"jsonrpc":"2.0"}
Response Body: {"jsonrpc":"2.0","error":

{"code":-32400,"message":"System error.","data":"JSON-rpc error generation failed. No such error: "}

,"id":2}

additionally, http://www.zabbix.com/documentation/1.8/api/user/logout is empty