Few things that will help you out.
1- Please put another Floppy Disk in camera as floppy disk itself can be bad.
2- Format floppy disk through camera Menu and try it again.
3- Apart camera and make sure connector of floppy **** drive is plugged properly in circuit.
If camera still gives same error, replace Floppy Disk Drive in camera.
Required FDD part number is...
177256311 .. DRIVE, FLOPPY DISK
and available
HERE for $74
Thanks.