Updating "Actual result" of TestRunResult as per the need in QAComplete with API

Hi,

I wanted to update Actual result of TestRun I am using java to get the result & followed below link https://support.smartbear.com/viewarticle/90408/ . But not able to update the record. I have specify test run ID which is required to get correct result. Even when I debug I can see all values in testRun object but testRunsUpdate method return error.

Can any one help me with this? am I missing anything & what will be the issue??