Cannot open appimage cannot run

Musescore…appimage Does not run, not in Downloads, not somewhere else. (wants to open as txt-file)
did the permissions thing, did a new download.
Cannot open error message /tmp/.mount_kou3KP/.DirIcon
on trying to run musescore…appinmage in Terminal.

Can you please copy and paste the exact error message when you run the AppImage from the command line?

Thanks.

Can you please copy and paste the exact error message when you run the AppImage from the command line?

Thanks.

I did remove appimage from the device. That is why I Cannot give you a error message. Thanks