Ce-34335-8 cannot fix

Something dropped on my PlayStation whilst it was on and it then turn off so I turned it back on and now it is coming up with the Ce-4335-8 error message. I have had it just over a year and never had a problem with it, all the screws are in place and I have taken the hard drive in and out a few times already; is there any other way I can fix it?
3 seconds ago