Unable to start: Cannot start because the required game data is missing or damaged (SOLVED)

Oops! I totally messed something up. When I say mod, I meant custom content. I only said mod because all of my custom content was in my Mods folder! So in actuality, the mod that was messing up my game WAS custom content! It is called the Lemingstone Modern Garden, and I figured out that one of the ottomans (I believe the first one) was the bad CC! So if any of you have that installed, just remove the ottoman and your game may be fine! Unless you have something else that's making the message come up.