Hi Eliandre,
I am Dave, an Independent Advisor, I will help you with this.
The solution may depend on your keyboard, try each of the following keyboard shortcuts one at a time to see if that switches those keys back:
Fn + A
Fn + S
Fn + Space Bar for 3 seconds
If none of those work for you:
Open Device Manager
Expand the Keyboards section
Right click your keyboard and choose 'Uninstall'
Then restart (not shut down) your PC