SAP Crystal Report stuck on "Please wait while the document is processing" but not hang

My Sub Report works until I add stored video parameters and linked it to my Main, It got stuck on "Please wait while the document is processing".

The Main Report Preview Works but if I run the report it doesn't

Here's my stored procedure for both reports:

ALTER PROCEDURE[dbo].[usp_MainReport]
            (                      
                @StartDate DATETIME,
               @EndDate DATETIME
            )
            AS
  BEGIN
select * from users
END

ALTER PROCEDURE[dbo].[usp_SubReport]
            (               
                @StartDate    DATETIME,
            @EndDate      DATETIME
            )
            AS
  BEGIN
select * from users
END

Is there a problem with my SAP Crystal Report?