Lightbox Quit Working After Adding Second Gallery

I installed the plugin and created my first gallery and everything worked perfectly. I created the second gallery and the lightbox feature stopped working on both galleries. I made sure on both galleries had “When enabled this setting will show previews of your photos on a separate page. When disabled your photo previews will be via a lightbox. (Activating this option is recommended)” unchecked on both and the settings matched which they did.

I deleted the second gallery and still the lightbox feature does not work. I am using “Template 1” for both.

Please let me know what I need to do in order to get this working again.

Thanks,
Dan

https://wordpress.org/plugins/simple-photo-gallery/