Plan upload failed: Execution could not be executed

Trying DroneDeploy for the first time. Using DJI MAVIC AIR 2 with a Pixel 4 cellphone. I defined the project and the app connects to the drone and passed the initial check. I see the plan with the camera preview. When hot the “start Flight” bottom I get the error “Plan upload failed: Execution could not be executed”. I am also near an airport in a geofenced area.