How to fix keyboard keys triggering incorrectly on MacBook Air?

one column (v,f,r,4,f4) of my keyboard is mapped to other column (n,h,y,6,f6) when i click r -> ry gets triggered same happens for all of these 8 keys

r -> ry

f->fh

v->vn

4->46

f4->f6

sometimes it gets fixed automatically and then back on

same for the other column how to fix this does anyone have any idea please help a brother out

[Re-Titled by Moderator]

Original Title: Keyboard triggering other keys