[semlar]

First, your for loops should just look like for i = 0, 9 instead of i = 0, i < 10.

Secondly, you're naming all of your buttons the same thing (LLcheckB_n) which wouldn't break it but is probably not what you want to do.

But mainly you are referring to the button as LLcheck1aBL but never actually assign that variable to the frame you created.

I would also personally rename all of your variables to something more comprehensible because that's contributing to the difficulty of debugging this.

Oh also table indexes start at 1, so you'll need to add 1 to k or i when you look them up. You also have chkBxArPosX instead of chkBxArPosY in your SetPoint function.