What may cause this problem while rendering with Photoview 360?

Here is the Solution.
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Step 1:
I have a spark plug part in SolidWorks.
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Step 2:
When I render it, half of the body is inside the floor.
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Step 3:
Now I close the render window and click Edit scene.
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Step 4:
Change align Floor with to XZ plane which I assume is the floor.
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Step 5:
Now i change the view to front view.
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Step 6:
I drag the double arrow to downward which is the floor offset.
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Step 7:
The floor is aligned with this arrow. Since this is below the model now, the floor will be just below the model.
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Step 8:
I click OK and then final render.
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Step 9:
Now the render is good and the floor is also OK.