Hi there and welcome
Can you remove the battery please then hold the shutter button down for 60 seconds then release.
Wait 5 minutes, put the battery back in and on the camera.
Tell me please if it now focuses correctly
to be sure, have you cleaned the lens to ensure no dust or grit is on it that can confuse the focusing?
I want you please to reset the camera, to do so, follow the instructions on page 190 of the manual which you can view here
Let me know the results please.
Which option in the steps? As this manual is specially for your camera?
ok, try both these please as one of these will clear it