Nginx – Jenkins publish over ssh success to connect the server but failed put file

I have a problem that when I do build to my job, its cannot put my file on the server directory in console output i get the message "ERROR: Exception when publishing, exception message [Permission denied]"

i have the following log output:

SSH: Connecting from host [rp_ci]
SSH: Connecting with configuration [web-dev] ...
SSH: Creating session: username [ubuntu], hostname [xx.xx.xx.xxx], port [22]
SSH: Connecting session ...
SSH: Connected
SSH: Opening SFTP channel ...
SSH: SFTP channel open
SSH: Connecting SFTP channel ...
SSH: Connected
SSH: Remote root is not absolute, getting absolute directory from PWD
SSH: cd [/home/ubuntu]
SSH: OK
SSH: cd [deploy/]
SSH: OK
SSH: put [dev-xx-xx.tgz]
SSH: Disconnecting configuration [web-dev] ...
ERROR: Exception when publishing, exception message [Permission denied]
Build step 'Send build artifacts over SSH' changed build result to UNSTABLE
Finished: UNSTABLE

For the target server Im using ubuntu server on AWS EC2 using nginx.

Someone know how to fix that's issue? I not found any clue for it around the web.
Thanks!