If bugs or other issues with Shabti are encountered, they may be reported at the Bitbucket project page (http://www.bitbucket.org/gjhiggins/shabti/issues/). However, please try to ensure that the issue lies with Shabti and not with one of the libraries it uses. In the latter case, it is more appropriate to report the bug at the relevant discussion group where it actually has a chance of being fixed.
With respect to questions or suggestions regarding Shabti, the best place to ask is the Shabti Google discussion group (http://groups.google.com/group/shabti).