I need help! Player Character is sliding and getting stuck in Level

Hey, I need some help here. Yesterday I was working on my Level and implemented some Assets etc. I placed nothing really special and suddenly I noticed my first-person player character keeps getting stuck and is sliding on its own. It only always does that in the same region of my level which you can see in the Video. I’m completely at a loss right now.

I tried deleting multiple assets from my level Including the house itself and non of it fixes this problem.

https://github.com/LazyLina/SAP5/blob/main/README.md

This project is due in 10days so I’m in need of desperate help!