Ok, so that the doctor is asking what is the matter, I saw that it was written "Unable to open file Commonres/ani_walk_sideways.brf" in case of 1257 AD. I know that 'ani' means animation and there is a folder named Commonres which has this and other files.
In Detail. When I click on Play Mount & Blade, the videos show, then the loading starts. and when it is stuck on Processing INI File, then i hear the error sound and when I Minimize the game by clicking on (window key) The Error window shows and on it is written "unable to open file Commonres/ani_walk_sideways.brf". Then the game closes. This was for 1257 AD.
The Same for Assassin but only that the file name is "human_anim.brf"
In Both Cases it is written "RGL ERROR" on top of the window in the blue bar.
Now may I Have The Prescription please?