Fix the foundation if that does not wrk find a material too help stabilize the soil hope this helps
"The lithosphere is subdivided into tectonic plates. The upper part of the lithosphere which chemically reacts to the atmosphere, hydrosphere and biosphere through the soil forming process is called the pedosphere. The lithosphere is underlain by the athenosphere which is the weaker, hotter, deeper part of the upper mantle."
Spain and France, but specifically Spain that's why it's so common to go over there and see people with yhe same Jose