I have an active auto policy, but my insurance company has the wrong car listed and wont pay a claim from a car accident.

I was in a car accident that was incorrectly deemed as my fault. My insurance won't pay any claims because it has no record of my new car on the policy. I bought the car 2 months ago after my other car was totaled in the snow. My insurance company took possession of the totaled car and paid me the settlement so I could purchase a new car. I went through a dealership, and my new car was tagged, titled, and registered through the state of maryland. The car they DO have on my active policy, is the one that was totaled. I have been making monthly payments for insurance on a car they know is totaled. I don't know what recourse I have as they are refusing to pay any claim.