My custom contents are not showing up.

I play Sims 4 over years and I really love the game. One time, I updated my game and the custom contents were gone. First, it didn't bothered me and I continued to play the game. But as the time passed, I began to download new contents and they didn't show up so I tried all the tips to bring them all. But neither of them worked. Plus, my contents isn't damaged or deleted. They're still in the The Sims 4>Mods file but not showing up in the game. Can someone help?