I used the memtest86 as you suggested and there was some errors,I disabled the xmp profile and the second test was fine with no errors.I will try some configurations with the ram timings to find the correct values,but I think the problem is solved,for now.Thank you for your quick response!

Two days ago the game started crashing with no specific reason and now when I try to save the game or the autosave tries to,the game crashes.I am using Krastorio 2,Even Distribution,Max Rate Calculator,Squeak Through.I disabled steam overlay and steam cloud saving with no change.