Doesn't open on Linux

[matt7ress]

Literally

Ubuntu 22.04.2 Long Term Support from ://releases.ubuntu.com/jelly (desktop image)
jell-machine_1.0.0_amd64.AppImage doesn't open, build_appimage.sh - error on line 6 (set -euxo pipefall - param -o blahblah set blahblah pipefall):

$ sh build_appimage.sh
build_appimage.sh: 6: set: Illegal option -o pipefail

same with $ sudo sh build_appimage.sh
i also tried using cat:

$ cat build_appimage.sh | bash
+ export ARCH=x86_64
+ ARCH=x86_64
+ APPIMAGE_BUNDLE_XDG_OPEN=0
+ APPIMAGE_BUNDLE_GSTREAMER=0
+ TRAY_LIBRARY_PATH=0
+ '[' x86_64 == i686 ']'
+ linuxdeploy_arch=x86_64
+ mkdir -p jell-machine.AppDir
+ cp -r ../appimage_deb/data/usr jell-machine.AppDir
cp: cannot stat '../appimage_deb/data/usr': No such file or directory

and same with cat build_appimage.sh | sudo bash
i tried with cat build_appimage.sh | sudo sh but got the same set -o pipefall error