partitioning - Setting Device Label using e2label or tune2fs causes Bad magic number in super-block while trying to open /dev/sda5

I am trying to set a label to my Partitions, I used the e2label and tune2fs command
with sudo but it cause the following error

e2label: Bad magic number in super-block while trying to open /dev/sda5
Couldn't find valid filesystem superblock

What is the problem?