I have a Panasonic Dvd Player, model DVDA105, i was watching it and i paused it and when i unpaused it the screen was frozen so i pushed play again and eventually i opened and closed it and now the dvd player wont recognize any disk, I get an error saying No Disk when i put any disk in, dvd or cd, do i just need a lens cleaner or is there something seriously wrong with it, thanks