Question

df -h shows there is space available but you are still not able to write files to the folder. What could be the issue

Answer 1

The possible issue when df-h shows that there is space available is that;

It Ran out of inodes

What is a Linux System?

The correct reason is that it ran out of nodes in Ubuntu which is an open source operating system on Linux

Now,  In a "vanilla" installation, if you have too many small files, they can consume inodes, but not space. However, you will observe that you have available space, but since your inodes are full, you'll not be able to use this space.

Read more about Linux System at; brainly.com/question/25480553