NextGEN slide show is not mobile responsive

This is a question regarding the plug-in NextGEN I am using for image galleries on a website I’m trying to update to wordpress. I am using the Custom theme, which is a child theme of Omega.

The problem is that the NextGEN slide show is not responding for mobile to fit the screen when the Custom theme is activated, and it clips the slide show on the right side. If I activate the actual Omega theme, the slide show acts correctly.

I’m not sure if this is relevant, but one thing I’ve noticed is that there is a little green arrow in the controls for the slider that allows you to click and magnify the image. When Omega is active and I click that arrow, the image magnifies and it looks very much like what I get when Custom is activated by default. If I click that green arrow while Custom is activated, the image does not change much if at all.

https://detroitsantarchy.net/Home/santarchy-past/year-2013/

Any suggestions?

Thank you.