Social Events

I'm not sure if this is a bug, technical difficulty, or user error, but whenever I try to make a social event, nothing shows up. The command goes through, and the pop-up appears, but it's always just a plain white pop-up with the title being the only other thing that shows up. I can't select anything other than the "x" the exit out of the pop-up. This has been happening for a few months and again I'm not sure if it's just a me problem or not, but I'd really like to have a proper birthday party for my sims T.T Please help!!!!! (Also, I hope that description of what's happening is good enough and makes sense.