Screen Size Problem and Settings

I can't click "Setup" button in Launcher and I can't click "Apply" and "OK" in library . I want to change the screen resolution but the setting won't allow me to change it . And the size it's too small and it's difficult for me to walk or click on floor to move . TvT

I don't know what to do o.O


And this is the link for my screen size :postimg.org/image/w47ra6rt9/

I hope the staff can help me to solve my problems ASAP cause i can't wait to play it . (/^v^)/