Poser - 3D Rendering & Animation Software (posersoftware.com)

Go here and use your Poser 11 serial number and you should be able to download Poser 11.  Bondware bought Poser from Smith Micro and updated it with version 11.3 to remove the Smith Micro server and put in their own.  Your version of 11 is trying to contact Smith Micro and they no longer support activations of 11 or 10GD.  Older versions should work as long as your machine has the required support files.  Poser 9 I think required Flash which has been removed from the internet for security reasons.  You might try to fix a replacement for flash, and it may work to let Poser 9 work.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13