iPad中的约束因为空值而中断

I am making an universal app. I am adding table footer view. And I am using a filler view in between last table cell and table footer view.The height of filler view is dynamically set. Its working fine in iPhone.But when I run the same on iPad its working but I am getting log warnings of breaking constraints. And I am not getting what type and where my constraints are breaking. Below is the log warning:-I am making an universal app. I am adding table