Deployment key - error

Hello

I need to add my project to a bitbucket repository. I got the following error .

root@rvtech-pc:/home/rvtech/Desktop/new/new# git push -u origin master
conq: repository access denied. deployment key is not associated with the requested repository.
fatal: The remote end hung up unexpectedly
root@rvtech-pc:/home/rvtech/Desktop/new/new# git push -u origin master
Warning: Permanently added the RSA host key for IP address '131.103.20.167' to the list of known hosts.
conq: repository access denied. deployment key is not associated with the requested repository.
fatal: The remote end hung up unexpectedly
root@rvtech-pc:/home/rvtech/Desktop/new/new# git push origin master
conq: repository access denied. deployment key is not associated with the requested repository.
fatal: The remote end hung up unexpectedly

Its very urgent, let me know what to do.

Regards