How to restore memory card after adding the line in the fstab file?

After adding the line in fstab, died memory card, which was the system. Here is this line:

/dev/sda1 /mnt/usbdrive ntfs-3g defaults,rw 0 1

. Windows detects the card but does not display no memory (how many employed, how freely, the total volume), or volume. When you try to log displays the following message:

Insert the disc in the device

. When formatting fails. Memory card SanDisk 8 GB for Vid 14CD Pid 6700.