New Unity 3D Scene immediately throws error "Object reference not set to an instance of an Object" why?

So i just started up a new Unity 3D Scene and i immediately got an Exception with the message above. Clicking on it leads me to “ParseArguments.cs” on Line 42. Why is that?

https://preview.redd.it/aclbuhgwk1ua1.png?width=1026&format=png&auto=webp&v=enabled&s=b1679f53cbd01a7b6674719b5b484c3bb0b5ce8a