It says is offline. It's like the game is not able to connect to internet. But I was able to redeem the CD key from Steam on EA games website - ea.com/redeem

I have tried on Windows computer and on my Steam Deck. Failed both times to connect to register WARP, says offline.
Maybe if I try to download the game from EA games it will work. Anyways the CD key was added to my account.

Ok I was able to play that way WARP in a Windows computer. I installed EA app and logged in with my credentials and installed WARP from EA store. That's it.

I wasn't able to play WARP on Steam Deck using Lutris and EA app. Also I have tried to launch the game replacing the files from EA app on Steam directory, but now there's a new error - "Origin app is not installed". Maybe there will be a way to launch WARP but for now I am giving
up.

After keep trying to find a way to play WARP, I finally found it.

1. Go to Steam Deck desktop mode
   
2. In the web browser download EA app for Windows
   
3. Then in Steam client (desktop mode) Add a non-steam game, Browse and in the Downloads directory you'll find EAAppInstaller.exe
   
4. Select the gear symbol and select Properties, Compatibility - Proton Experimental
   
5. After installation enter your EA login information
   
6. If you already redeemed the CD key from your Steam account, then proceed to download WARP
   
7. Enjoy WARP on your Steam Deck