FFT Megacore not working in dsp builder

Hi

I want to implement 1024 points FFT in my design in v6.0. But problem is, the Megacore is not woking in v6.0.

I try to implement FFT in dsp builder v6.0 and v10.0.(files are attached with this thread)

In v10.0 FFT megacore is working but in v6.0 the FFT core is not working.

Although My dsp builder v6.0 is licensed.

I can not understand what is the mistake in my design.

If anyone have a firm grip on this core please help me.

Thank You