Aggregate data item error

[que1983]

This is the error message when I attempt to build a chart based on code in my program

Unable to build the aggregate dataItem="Weekly - Total". The referenced dataItem="LOCK EXPIRATION DATE" was not found at the same nesting level.

I chose the following:  Series primary axes=Weekly Recived total and Weekly not received total
Category = Lock Expiration Date (I want to be able to show each date per week in a range.  For example 02/23/16-02/26/16 with a weekly total of 215 for received and 298 for not received
Deafult measure axes I chose Weekly total to capture the totals per week.  I do not know why I get the above named error.

[BigChris]

Are you using relational or dimensional data?

[que1983]

Relational reporting style