AppImage does not respond

I am sorry if i did a mistake by my self but after I had a fresh Arch Linux install with the archinstall script I used my PC as normal but when I tried using an AppImage after I had made it executable with the GNOME GUI it did not react and I did not get any error messages (neither in the command line). I already tried other AppImages with the same result. And I already tried to make it executable with the command line without success. But when I reenter the Properties of the AppImage the executable switch is off even tho I made it executable before that and when I set it again executable and try to run it it does not react.

Please help me I would appreciate it.