Hi Anita, in case this has not be resolved, i just had this issue this morning.
I was unable to add or see any Analysis in Predict Tab.
It seems that if you supress your preference settings
(in C:\Users\yourName\.sapvi\predictive_preferences)
including links to all of your documents, and "repairing" Predictive Analysis by Re-installing it, it works again 
.
It also seem, after reimporting the original issue document, that it is blasted, so you'll have to redo it from scratch.
Hope it will work for you, notice me if it does !
Guillaume BUNEL