When I go to do a tiny planet.. it gets ready. But it never counts down. I press it again and then says it was cancelled. I can’t do a tiny planet.

Anybody else with this issue ?.

Are you by any chance in Sport Mode?
Or did you get a "time out" message?

Please refer to the answer on 2#. Check if your gimbal is in FPV mode, please ensure that you are in Follow mode, ensure that your mobile device has enough space for shooting the panos.
Besides, may I know the version of your DJI GO 4 and the mobile device you are using? Try to update or refresh the latest app, note to do a backup like syncing the flight record and saving the pictures and videos before your reinstallation.
If the issue persists, please provide us with a video of the operation video for further confirmation, thank you.