[Plugin: NextGEN Gallery] Widget Help

I have been using the gallery for some time but decided to give the widgets a go. However when I place any of the widgets in my sidebar the images don’t center. You can see this by looking at the one I have at the bottom of my left sidebar, https://www.realeuphoria.com

I don’t know enough to be able to fix this in the file so if you can tell me how I can fix this I’ll add the code etc. Any assistance would be appreciated.
Thanks in advance