Balena Etcher AppImage, No such file or directory

After browsing some forums, all the progress I made lead me to install the packages "libappimage0" and "libappimage0:i386", which once installed gave quite a bit more info in the output of launching Etcher, but I'm still kinda stuck. Before installing those packages it would just act like there was really no file or directory even though the target file was there.

What I can make of the output is there's a problem with "libgtk-3.so.0", aptitude can't find it in the repos, a quick search shows it's a Fedora thing(on ubuntu!?). Also /tmp/.mount_balena9mxQFr/balena-etcher-electron doesn't exit. I'm kinda stuck here.

Code:james@james-Aspire-E5:~/Downloads$ ls
balenaEtcher-1.5.57-ia32.AppImage teamviewer_14.5.1691_amd64.deb
'minecraft stuff' tor-browser-linux64-8.5.5_en-US.tar.xz
supertuxkart-1.0-linux.tar.xz
james@james-Aspire-E5:~/Downloads$ chmod a+x balenaEtcher-1.5.57-ia32.AppImage
james@james-Aspire-E5:~/Downloads$ ./balenaEtcher-1.5.57-ia32.AppImage
/tmp/.mount_balenaHAGgRi/balena-etcher-electron: error while loading shared libraries: libgtk-3.so.0: cannot open shared object file: No such file or directory
james@james-Aspire-E5:~/Downloads$