Robotarm fails to launch on embedded devices

"DBUS_SESSION_BUS_ADDRESS" "unix:path=/run/user/0/dbus_session_socket"
"FB_MULTI_BUFFER" "2"
"LD_LIBRARY_PATH" "/data/user/qt/squish/lib"
"QTWEBENGINE_DISABLE_SANDBOX" "1"
"QT_IM_MODULE" "qtvirtualkeyboard"
"QT_PLUGIN_PATH" "/data/user/qt/squish/plugins"
"QT_QPA_EGLFS_FORCE888" "1"
"QT_QPA_EGLFS_FORCEVSYNC" "1"
"QT_QPA_EGLFS_KMS_ATOMIC" "1"
"QT_QPA_EGLFS_KMS_CONFIG" "/etc/kms.conf"
"QT_QPA_GENERIC_PLUGINS" "squish:10100"
"QT_QPA_PLATFORM" "eglfs"
"SQUISH_PREFIX" "/data/user/qt/squish"
"WAYLAND_DISPLAY" "/run/wayland-0"
"XDG_RUNTIME_DIR" "/run/user/0"
"/opt/RobotArmApp/bin/RobotArmApp" QList()
QQmlApplicationEngine failed to load component
qrc:Main/main.qml:10:1: Type App unavailable
qrc:/content/App.qml:17:5: Type MainScreen unavailable
qrc:/content/MainScreen.ui.qml:10:1: module "Backend" is not installed
quit