the current version of the package is not in its VCS.
Either you need to push your commits, or the information about the package's
VCS are out of date. A common cause of the latter issue when using the Git VCS
is not specifying the correct branch when the packaging is not in the default
one (remote HEAD branch), which is usually "master" but can be modified in
salsa.debian.org in the project's general settings with the "Default
Branch" field). Alternatively the Vcs-Git field in debian/control can
contain a "-b <branch-name>" suffix to indicate what branch is used
for the Debian packaging.