(SOLVED) How to check a certain block tag without checking the air

I created a stone building and my own block. When I put a block on top of the structure in a certain place, it checks each block (stone) of the building. The fact is that I would like the building to be made not only of pure stone, but of blocks with the tag #minecraft:stone. I have already found a procedural block that allows me to get a block in a certain place with a certain tag. But the fact is that this procedural block also checks the air if the stone is not found. How do I make sure that this procedural block does not check the air?