Query issue: multi-part identifier could not be bound

Hi Experts,  

The following query returns an error of the multi-part identifier dbo.tbDA_Day_Date could not be bound. Can you help?

WITH FirstCreation AS (SELECT     dbo.tbDA_Day_Date, MIN(ttbDA_Day_dateCreated) AS FirstCreatedDate
                                                  FROM          dbo.tbDA_Day
                                                  GROUP BY dbo.tbDA_Day_Date)
    SELECT     Main.tbDA_Day_date, Main.tbDA_Day_Comments, FirstCreation_1.FirstCreatedDate
     FROM         dbo.tbDA_Day AS Main INNER JOIN
                            FirstCreation AS FirstCreation_1 ON Main.tbDA_Day_date = FirstCreation_1.tbDA_Day_Date
     WHERE     (Main.tbDA_Day_isDeleted = 0)

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 Thanks,

Thomas