Hi @tshidi.moroma,
I am sorry you are experiencing this issue. I have tested the issue on play.dhis2.org/2.36.3 and I am not seeing the same issue regarding showing zeros. Please upgrade to 2.36.3 and let us know if that fixes the issue. You also need to upgrade to address a security concern in 2.36.0.
We also highly encourage to you begin to use the data visualizer application to make pivot tables. Starting in the 2.37 release the pivot tables app will no longer be supported as we have moved all of the functionality of that app into the data visualizer application.
Please let us know if the issue continues after you have upgraded to 2.36.3.