Sims keep glitching and cancelling queued interactions.

Hi, I am playing only the base game and recently I "purchased" the free Holiday Kit items on the marketplace. When i tried to use them, some items are alright, but some of them can't be used and said: "Failed to compute cost".  I don't know why this happened and need enlightenment. That is problem no. 1.

No. 2: AFTER the major update, I noticed that the Sims around my Sim are glitchy when they are standing still.  When my Sim interacts with others, she will suddenly reset after every interaction. I queued up a couple of interactions, but they are quickly cancelled as soon as the first one is done. The Sims wouldn't sit and chat on the bench/sofa, or maybe they can't. The toddler interactions are also glitchy. The toddler was suddenly transported to the ground when they were being held by an adult. 

I tried again with a new Sim/game, but the problem still happened.

Side notes: I already removed all mods and CCs, deleted caches, and repaired the game files. I don't know what to do. Should I repair the game again?