RML AWS Plugin Not working

Does this plugin actually work? We paid 85 dollars for it and i have reached out to support multiple times with no answers. I have put all the information in and i have even used a different plugin just as a test and it connects to AWS fine. What is the issue i know its not my configuration because i have checked that 500 times now. When i try to validate the connection this is what i get Could not connect to remote Library. Please verify your remote library settings. Only valid libraries are added to the media manager.

Please HELP!!!!!!!! I am not sure if anyone else has had issue with this or can provide some sort of insight. If this plugin worked as it said it would be the greatest thing ever.