TwoRavens - Empty Tables loaded when Explore tabular data on dataverse 

Hi, I am trying to do some tabular data exploration through dataverse demo website and it does not seem to be able to load my tablular data into TwoRavens tool when I click on the "explore".
I tried it with different tables and the issue remains the same.
It would be nice to get a view of what one could be possibly do with TwoRavens on dataverse.
Thanks.