Weighted sum not working

I have created an xlsform for a questionnaire, I want to get the responses as weighted score for each question in the questionnaire. Before the responses start coming, there is already a calculated score whereas it ought to be zero (0) at the beginning and then sums the total scores for each question to return the final score per question.
Please i need help
link to excel file Iscall.xlsx - Google Sheets

Welcome to the community, @mrktg_intelligence! We have some similar posts discussed previously in the forum. It should solve your issue: