Sims 4 Delivery Won’t download

It keeps popping up on the side of my screen: "Sims Delivery Error," then a code. I think it’s causing my game to bug I’ve tried restarting my Xbox and the game several times. My Sims are consistently canceling out what I tell them to do. And my game keeps freezing when things pop up on my screen and won't let me hit a or b on my remote to get out. Please fix it. I finally just got back into my Sims stage, and every time I do, I realize why I don't play the game much.