It's a proxy issue. Allure doesn't support it yet. @vania_pooh is one of Allure developers, so yo can try to discuss your problem with him. Anyway, there're only 3 users (including you) who interested in this update. So probably you should just wait, until they add this feature.
UPDATE: just saw that you do not have internet connection. As far as I understood from this discussion, you must have internet connection.
BUT, if it requires internet connection only first time for downloading necessary dependencies, you can ask @vania_pooh, if he can share appropriate jars for further adding them into your local maven repository.