Null value or Empty display

Firstly, I am not sure if this question is suitable for this community or not.

I am working on creating a report table that is given to the user after compiling some data. Now in the table cell, I show the data that is obtained after the data compilation is done.

There is one option in the report where when data is not returned (due to any reason)

  • I can either show null written in the cell, or
  • I can keep the cell empty

From the user's POV what should be kept, an empty cell or null written there.

Basically the user should get the data shown in cell but this is just in case if any issues occur.

Here are images for some details (the left cell shows null as value and right cell shows empty) -

Difference