gallery widget displaying thumbnails in the wrong place

Hello there!
I have a slight issue with my new theme I am using. I want to display thumbnails on the front page using the nextgen gallery widget. It is working but it is displaying the thumbnails slightley out of place.
As you can see here:
https://www.wigan-pier.co.uk/OBB/
Please can anyone give me a pointer of what to edit to get them more central?
Thank you so much for your time. Really appreciated!
Thank you
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