I've tried and tried but I cannot run the successful party to finish Week 6 and haven't been told of any ghost party that it needed either. I've run successful parties before. Are there any objects you need to put into party venues from the rewards already won?
Make sure that you have a high friendship score with whomever you invite to your dinner party. My first time attempting it, my sim didn't have a very high score with the 2 she invited and I didn't get a good score. So I tried it again. And it didn't change anything. I saved my game and went back later, and this time I made sure that I had a higher friendship score with the ones I had invited and by the time the event was over, I had completed it to the satisfaction of whatever is scoring this thing. But for me, saving the game and leaving that lot, then going back into the lot AND making sure that score was high. Then I just had to wait for a Wednesday night for the ghosts to visit a pub and I was done.
There was no ghost party to go to. You only have to go to the pub WHEN the ghosts are there on Wednesday night to complete this one.
Good luck!
