It looks as if the colors are inverted, but I don't know if that's lighting or how to fix it. There ARE faces there, but I don't know why they are appearing wrong.
remove doubles,
turning on subsurface modifier (and looking for peculiar topology),
recalculating normals,
does not work, I recommend you upload the .blend file with http://blend-exchange.giantcowfilms.com/
It appears that you are in orthographic view press 5 on numpad to exit this view
remove doubles,
turning on subsurface modifier (and looking for peculiar topology),
recalculating normals,
does not work, I recommend you upload the .blend file with http://blend-exchange.giantcowfilms.com/
– Allosteric Dec 22 '17 at 05:06