Warning Division by Zero

I have the same message
Warning: Division by zero in /home/content/20/9755120/html/laketahoe/wp-content/plugins/nextgen-scrollgallery/nggScrollGallery.php on line 296

I have version 1.8.2 have checked all my photo sizes and settings.

I tried the import meta data and instead of one warning, I recieved a warning for all images

Here’s the link https://daveandjen-sept12.com/add-your-photos/

https://www.ads-software.com/plugins/nextgen-scrollgallery/