I purchased and started playing Late Night about a week ago. Was working fine until about 3 days ago when I lost the ability to interact with other sims. I can greet them (sometimes) but I can't interact with them further. The "man" icon comes up and when I click on them it does nothing or says "No interactions available". The sims aren't busy; for instance I will invite one over, they will be at my door I can greet them and then there are no more interactions I can make.
I can interact between my own sims (I have 3 in the household) but not my butler. (2 of my sims can't interact with the butler at all, 1 only gets the "Stop Doing That" option even when the butler is not busy. The Butler doesn't cook and I can't ask him to. (He only seems interested in making beds and drinking all my special drinks; but he is the only one so far that didn't run away to the movie lot).
I have the newest patch and I have no mods; have never had any mods just the basic game. Sorry if I posted this in the wrong place, I have never posted here before. I tried searching for solutions but all I have found are answers saying to remove the mods (that I don't have) and it doesn't seem as though that fixed the problem.
I really would like my sims to have relationships and kids but I can't interact with anyone enough to do so.

I also can't complete opportunities such as "Promote Restaurant to 3 Sims" because I can only greet them. Please help! I am very frustrated.