Adobe Form Designer Help Needed Urgently Please

I have created the dynamic form and subforms in it. I am using a Dynamic table as well with total sum calculation. I have spent a lot of time but couldn't figure out the problem. I am facing the issues,

1. Page Breaks for DynamicSubForm is showing an error. 

2. Is it possible to update calculation script so that it automatically subtracts removedinstance value from the total field? 

Your help is so much important for me. 

Here is PDF form attached. 

Thanks