Hi have two mods in my game. A teen pregnancy one and the no pixel one. But I have recently noticed my furniture disappearing when in the game such as doors missing or cupboards, if it is due to mods....
There's also the Sims 4 Mod Manager written by Raxdiam (available on MTS and I'm sure you can just Google for it - I can't post links yet as a new member). It's a great tool. You can just turn off a mod with a checkmark, but it keeps a cached copy of the mod in a folder so you can re-enable it later. It also lets you install mods (custom content, package mods and script mods) by just dragging and dropping the zip file to the mod manager.