MTT Excel Sheet errors

[zizazziza]

I don't know if this is the write forum or not. But recently I have been getting a "#REF!" in these boxes. I have tried doing the drag-down method where I take the bottom right of boxes above and drag it down to other boxes; however, this is did not fix the problem. Should be a screenshot with the formula in the top. I downloaded this from 2+2 and was wondering if anyone had any idea how to fix the problem.

[pEkvo]

#REF!

Appears when Excel encounters an invalid cell reference, such as when you delete a cell referred to in a formula or paste cells over the cells referred to in a formula.