Cant change my display settings

[Playah]

i decided to play ror again after a long period of inactivity
i tried to toggle on fullscreen but it didnt work so i went with the usual way the guide said but for some reason when i tried changing the display resolution it still didnt work
(the last two screenshots are about the gpu and screen resolution)

 

[Miner34]

Did you try changing it manually in the RoR config with a text editor?

 

[CuriousMike]

You're experiencing the "Failure writing settings file" error described here https://docs.rigsofrods.org/gameplay/common-issues/