Sims Won't Load Past Loading Screen

Apologies, as I'm new here, but I've been having a problem with The Sims 4 for a few hours this morning.

Last night, or more around midnight, technically, I had downloaded a lot of custom content and saved it to my mods folder, and when I went to start up The Sims 4 this morning, I found that it wouldn't pass the title screen and would stop responding. After removing the mods folder from the Electronic Arts folder, I discovered it was due to a piece of custom content. Initially, I started removing custom content in collections of twelve, and then finally one in fifteen.

Loading up the game after this seemed to work, however when I went to test my remaining custom content and see which piece of content had caused the bug, it went back to refusing to load on the title screen. I did the 50/50 method and even went to take out content one by one until I had content that worked on the game prior. Curious, I decided to test if my prior content still worked. Unfortunately, it did not, as the game still refused to load on the title screen.

Is this a problem due to an update, or is this just my copy of the game?

For context, I repaired my expansion packs and games twice before beginning the 50/50 process and such.