Why can't I turn back on my threat service?

So today, my windows 10 computer, mostly Windows security, decided to stop the threat service. The service turned off, and if I turn it on, it says "Unknown Error has occurred". When I first open windows security, it says the IT department has limited access to parts of windows security, and it says to contact the it department to help with this error. This is my personal computer, no school or work accounts have been signed in to this computer. My Microsoft account is a personal account, so I don't know what would be causing this error.

Pictures are included below, so if anybody has a answer, I would be happy to know