Getting error invalid or unqualified reference

Hi TMS,
Sorry for asking the problem here in solved thread again. The problem is related to this thread so I am posting my problem here.

The superscript problem is solved but I am not getting the correct output in total columns. I am getting output of total column 'I' in other total columns. I am not understanding why it is happening.

Please see the attachment and give me your valuable guidance to solve this problem.

Thanking you in anticipation.