This is my fstab file:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# systemd generates mount units based on this file, see systemd.mount(5).
# Please run 'systemctl daemon-reload' after making changes here.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sdb2 during installation
UUID=b0bc0b3f-3ae9-45e9-a3e9-72a3a811910a /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sdb1 during installation
UUID=E751-7DC9  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sdb3 during installation
UUID=f7e7486c-a58e-4c34-9127-ba0aa08147e5 none            swap    sw              0       0
/dev/sr0        /media/cdrom0   udf,iso9660 user,noauto     0       0
# DATA
/dev/sdc1       /mnt/harddrive  ntfs    defaults        0       0
(END)

I mounted the partition with my data into /mnt/harddrive. Normally Debian 13 starts but rarely the system does not boot and the error of the attached image is displayed. Does anyone know the reason? What can I do to correct it?