BR7060 Bale Controller Eject Error

I am getting an controller error when bale is ready for ejection. This started immediately at first use this season. Working fine when put up last season. Mechanically everything is working fine. When net roll stops controller reads error, I clear and eject bale then start next bale. I suspect there is a sensor problem but not sure and don’t know where to start since mechanically working. Any suggestion greatly appreciated.

BR7060 Bale Controller Eject Error