I’m in the same position here. The ‘Additional buttons’ box being inactive. I left a comment on this plugins home page; i.e., http://www.riyaz.net/getsocial/. Hopefully the developer will respond at one or both locations.
I’m not finding any instances where the suggested solutions to this problem are used and one works. So, if you’ve tried everything, what do you do? I’m at a loss. My site is down and has been down for a day now. This seems to be an inherit problem in WordPress that has lingered over many generations. Is there anyone who knows how to solve this problem? Do any developers out there know how to fix this? As I’m sure you can tell, I’M FRUSTRATED!