Surface Type Cover isn't working, how can I fix it?

Hi, I have a Surface Pro 8 which runs on Windows 11. This morning my Type Cover stopped responding despite being connected to the Surface. Both the keyboard and the trackpad aren't working. The LED lights on the Caps Lock and Fn keys were also not working when I pressed them. I have tried restarting my Surface, troubleshooting the UEFI, uninstalling keyboard drivers and the Surface Diagnostic Toolkit and they have not worked. Is there any other way to fix my Type Cover or is this a hardware issue and have to get a replacement?