My Sim Wont Do Anything!

I downloaded the base game, get to work, get together, and the ulti fix. It launched and everything was just fine. But when I told my sim to do something, she/he would not do it. The task would just disappear, they do some things but mostly not all of them, anyone has this problem? (I can't open with administrator too, the only way it works if I open it with "TS4.exe" I have a 64 bit laptop too. Please reply fast, I don't want to uninstall my sims 4 and do it all over again.

Do you have mods? This happened to me when I used outdated versions of some script mods. 
It sometimes happens with MC Commander too, if I play a household, that has a lot of stuff on the lot. It only happens at night and I still don't know what exactly tirggers it.
It might be the population commander, when it's chosing which sims get impregnated ,which get married and after a while notifications also comu up when sims give birth. My solution for this is that I go to manage worlds and play a household that doesn't have many things on the lot for a few hours. Then I can return to the revious household and play it nomally again.