With this error message Gerrit rejects to push a commit if the pushing user has no upload permissions for the project to which the push was done.

There are two possibilities how to continue in this situation:

  1. contact one of the project owners and request upload permissions for the project (access right 'Push')

  2. export your commit as a patch using the git format-patch command and provide the patch file to one of the project owners

Part of Gerrit Error Messages