Array Modifier and Geometry nodes ERROR

I managed to apply an array modifier to the tank collection but nothing happens after adding it. It’s like it doesn’t respond to my inserted numbers at all.

What I’m doing wrong. If I have something wrong in nodes or there is something missing so I will be glad for advice thank you. I see other people showing this everywhere but they only do it with the cube which is one object as a whole.

My tank is composed of several objects and something is still not working