Support is not that clear. After posting a message and see a similar one posted after I posted mine, nothing happened.
It seems there is no support.
The plugin is good generally speaking (except the google+) but support seems non existent. Hope this will be improved by the developers.
Sorry you had problems,
Seems something is wrong with you setup of plugin probably. How have you setup other sites, in a sub folder or as sub domains?
There were some changes Google+1 API that could have caused some issues. We are happy to look into this for you if you would like us to help you, please contact us via forum.