Hi there RouxRoo,
Check out the steps below as those may help resolve this issue with the remote:
Try these steps first
1. Stay within 20 feet (about 6 meters) of your Apple TV and move anything that blocks the path between your remote and the front of your Apple TV, television, receiver, and sound bar.
2. Charge your remote for 30 minutes using a USB-C to USB or Lightning to USB cable and a USB wall charger.
3. Unplug your Apple TV from the wall power outlet. Wait at least six seconds, then plug it back in.
Those steps, and additional steps, are from this article: If your Siri Remote or Apple TV Remote isn't working
If those steps don't help, you can reach out to Apple Support for further help with this here: Get Support
Take care.