Unable to access the configuration of current build. - error

This highly indicates issues with your internet connection or your device's inability to connect to EA servers.

Have a look at the troubleshooting guide, the connectivity section ->  Mobile Troubleshooting Guide | EA Forums - 12718775 
Good luck.

The Mobile Troubleshooting Guide is a great place to start. I'd recommend going through the connectivity steps, clearing the game cache, and, if your account is linked, reinstalling the game. If the issue persists after that, let us know your device model and whether you're on Android or iOS.