There is no connection to the aircraft

Thanks for that screen shot. But it is a long listed of errors from the mini2 drone. Have to ask, did it crash? I'm worried that the camera and gimbal are damaged ( as seen from some of the error messages).

The dji drone goes thru a long checklist when it powers up and connects to the dji Fly app. Everything on the list has to work before dji will let you take off.

I suggest you send the screen shot to dji support for help.