Siril stopped working, and gives no log anymore, only fills process folder with lights,pp_lights and r_pp_ligts

Siril stopped working, and gives no log anymore, only fills process folder with lights,pp_lights and r_pp_ligts.
I had it working on 1.0.6 with good result. Then I installed the new 1.2 version and it stopped. Then I uninstalled that and installed the 1.0.6 again, but stiil nothing works. And very strange there is alsso no output art all when I start the processing script. Can somebody help? Thnks