Creating a stacked column chart with data from multiple table

I am trying ot add a set of data froma different table to a stacked column chart. 

The data i want to add will be a new category that i want to have stacked with existing column. X axis represent week number and and the stacked value are hours.

I created a new table with the data i wanted, use week number to create the relationship but cant get the data the work. Any input would be appreciated.

Seb