Themes no longer working for WINDOWS 10

I am a Windows 10 user,

I hope someone here can help me out:

• My Windows Themes suddenly stopped working. I can select all other categories under "Personalize", but clicking on "Themes" results in the application crashing (i.e., the window closing) and a SystemSettings.exe dump file being created.

Upon booting into Safe Mode, I got a direct error message that I screenshot:

https://preview.redd.it/l3nu2zifzu3h1.png?width=429&format=png&auto=webp&s=a5f406f0f859a6c7402ad447aad0b7e8bd67aa7c

How can I easily fix this without resorting to unwanted measures such as a system restore or having to create a brand new user profile?