Blackshark v2 Pro right side not Working

So I've had this headphones for well over 4 years and they just stopped working on the right side. No audio at all 😭. I'm very careful with my stuff so I don't know what happened. Anyone know where I can send this off to be repaired? Since its well over the warranty.  The left side still works but the right side isn't. I love this brand and these headphones but I don't want to have to but a whole new headset I spent over 200 on these at Walmart. Any leads on someone who can fix this?