Razer Phone 2 proximity sensor

Hi. I got a razer phone 2 last year during the sale, but it is now out of warranty. I put the phone on top of my car, forgot, and ran over the top of it as I drove off. It works fine, has a small tire print over the top grill. However, when I am on Discord calls or just default phone calls, the screen flickers on and off repeatedly, and I can't control it. I wait for it to be in an on state to be able to end calls. I think the proximity sensor is broken. What should I do about repairing this? I also need a new phone case. I saw the razer phone 3 prototype, so hopefully that will be released soon. Thank you.