I sent an email to you in reply to yours. I see a couple strange things which is why I suggested to upgrade to 4.20
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That top block with those 4 centered images is how that block is suppose to show in vbgallery.
I turned on my test copy to show you how it is suppose to look but I use Pro so I turn it back off after you see.
Your site is missing the spacing between those photos. Like on mine the thumbnail size is 100 and that means each element is 130 pixels.