Missing flight sheet - no miner is set

i set up a new rig i create everything flight sheet worker etc. but when I start the rig it says ‘missing flight sheet’ and error message of ‘no miner is set’. i tried everything tried different gpu’s, image the USB, change the cables but no solution. Is there anybody see this problem ? how can I solve this.

Did you create a flight sheet and apply it to the worker?

If not click the menu button and select flight sheet