Salix OS

I tried to install the tuner app with flatpak in salix-xfce 64
First to install the app and then to run tuner and i get
error: ldconfig failed, exit status 33792

This happens with every app i try to run
Can anyone tell me how i can run flatpak apps?
Thanks.

Works fine here. What system are you running this exactly? Could it be that you are out of space?

I run salix-xfce 64 installed in external usb 32GB stick. I use a lenovo i3 g510 8GB RAM laptop. Same happened on slackel in internal disk.
There is plenty of space.
I cannot figure out what is wrong.
I am writing this message from this salix-xfce 64 on usb stick. system works fine.
I never manage to run flatpak apps

Is that an installation from the live iso or the standard one?

It is from live iso.
But in vmware also where it is an installation from the standard iso, i get the same message. flatpak app don't run.
Also in both installation there is no flatpak user and group.
In another partition of my disk i have ubuntu 16.0.4 and i installed there flatpak. tuner run there. I saw that a flatpak user and group created by apt when installing the flatpak.
The test to be done is do a new installation of standard and live iso in vmware to be fast and install a flatpak app and try to run it.

Flatpak runs fine in every system I have, bare metal or VM. There's something else that is probably wrong. There is no need for the flatpak user/group in salix as in ubuntu.

What is wrong here? It is the hardware? The laptop? I have to find another laptop to use flatpak.
It is strange.
This ldconfig message, maybe is the cpu.

No, I don't think it's the hardware. Unless you have a faulty HD or RAM.

Also i saw that 1.5 GB installed in /var/lib/flatpak for tuner. If installing one app take so much space then flatpak is not useful. this is a con of flatpak.
what is yours du -sh /var/lib/flatpak

Yes, that's how it is. But it won't be 1.5GB for the next flatpak you install, since it will reuse the runtime (if it's using the same runtime).