I've configured jira test result reporter plugin with Jenkins, after build gets failed I'm facing HTTP 400 bad request error issue.

Versions:

Jenkins ver. 1.580
JiraTestResultReporter plugin 1.0.5
JIRA: 6.4

Console Output:

[JiraTestResultReporter] [DEBUG] ----------------------------
[JiraTestResultReporter] [DEBUG] Creating issue in project QAA at URL https://guidanz.atlassian.net/rest/api/2/issue/

[JiraTestResultReporter] [INFO] Reporting issue.
[JiraTestResultReporter] [DEBUG] statusLine: HTTP/1.1 400 Bad Request

[JiraTestResultReporter] [DEBUG] statusCode: 400

ERROR: Publisher JiraTestResultReporter.JiraReporter aborted due to exception
java.lang.RuntimeException: [JiraTestResultReporter] [ERROR] Failed : HTTP error code : 400
at JiraTestResultReporter.JiraReporter.createJiraIssue(JiraReporter.java:188)
at JiraTestResultReporter.JiraReporter.perform(JiraReporter.java:108)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:770)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:734)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:683)
at hudson.model.Run.execute(Run.java:1770)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:89)
at hudson.model.Executor.run(Executor.java:240)
No emails were triggered.
Finished: FAILURE

For reference check attached configured screenshots.