If the bond order of Al-Al is still large after removing diffuse functions, there may exist three-center bond, the electron sharing is evident even though the two Al atoms are not spatially close with each other.

This is bond path image of bal2

Now, my question is if the mayer bond order between 2(Al) & 3(Al) =1.087242( that is, it has single bond character), then why this bond order is not reflected in the bal2-bondpath.png between 2(Al) & 3(Al)? (it seems like there is no bond between 2(Al) & 3(Al))

So, I have attached my input file.
my input file is as follows:-

Please reply sir.