Radarr won't start

Troubleshooting
21

It does auto complete to ./Radarr but then says

root@DietPi:/opt/radarr# ./Radarr
-bash: ./Radarr: No such file or directory
root@DietPi:/opt/radarr#

so weird.

22

I have no idea how this could happen. Maybe MichaIng has some more ideas