Magic keyboard wrong type key How to fix?

I have the imac computer, and the keys wouldn’t type. Which is Space, g , t , 5, up arrow and down arrow , and a few more and I feel like my settings are wrong, I fixed them, and updated my computer but the same thing happened. I used the keyboard viewer and its tiring, i’m trying to make my magic keyboard work again. Any advice..?

Make sure Mouse Keys is disabled in System Preferences > Accessibility > Pointer Control > Alternate Control Methods. Not working this setting