This view won't let me use the Chart option

This view won't let me use the Chart option

I have a view that for some reason I can't select the Chart option. I don't know if I'm missing something or if this a bug.

Here's the link:

http://creator.zoho.com/edsilva7/pagos-personales/view-perma/Deuda_Total_Mensual_View/GxWC2FkRO6qNwXH42eP2OnBum7RnYE5eC97u9KtqTn6UsRpetK3ChFKb5uEYNKm8XMmAC0QC1aqM9aRzTEUOPD5FGC6uCB9A7DpX

Regards,

Ed Silva.
www.ChristianMembership.com
www.ContenidoCristiano.com
www.Top40GPS.com
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