RTC 5.0.2 with Stash integration

Hi,

I have configured the Git (STASH )repository in RTC and then applied the hook in GIT repository too. I have pre-condition set in RTC as well. When I do git push then receiving the error as

C:\GITWorkspace\jazzgit>git push
Password for 'https://OThamsetty@stashdev.domain:7993':
Counting objects: 4, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 313 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote: 'Push Operation' failed. Preconditions have not been met: "Owner of the
remote: it is null or does not match the Git user."
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://OThamsetty@stashdev.domain:7993
/scm/rat/jazzgit.git'
C:\GITWorkspace\jazzgit>

JAZZ LOGS
2016-08-09 11:56:15,881 [WebContainer : 6 @@ 15:18 <unauthenticated> <Initial Page Load@10f4582b-2d06-4e02-96fc-b4baf3a966c6> /ccm/auth/authrequired] ERROR com.ibm.team.git                                    - AbstractGitInvokeService.perform_POST(): exception
com.ibm.team.repository.common.TeamRepositoryException: 'Push Operation' failed. Preconditions have not been met: "Owner of the Git commit is null or does not match the Git user."
    at com.ibm.team.git.auth.internal.GitOAuthHelper.getError(GitOAuthHelper.java:200)

GIT Logs

2016-08-09 11:56:15,933 WARN  [http-nio-7993-exec-3] OThamsetty @1PE58L6x716x9892x0 10.90.11.51 "POST /scm/rat/jazzgit.git/git-receive-pack HTTP/1.1" c.a.s.i.s.g.p.http.HttpReceivePack RAT/jazzgit[64]: Git hooks have not been called. Please verify that the hooks are configured correctly - see https://confluence.atlassian.com/display/STASHKB/Git+hook+scripts+are+not+executing for details

Does anyone have any clue where I am missing the configuration.

Thanks,