gallery won't show after server change

long story short:

the page where my gallery is set to display won’t display anything – not the text on the page or the gallery. nextgen sees my existing gallery and all it’s images in the admin pages, but won’t show it. i can make a new gallery just fine.

i’ve tried everything i’ve found in the threads, including reinstalling nextgen, backing up/restoring the nextgen tables via phpmyadmin, ensuring wp-content permissions are 755…can’t make it happen.

i’m trying to avoid rescanning all my images and starting over because i have 7500 of them. they’re all on my web server but the ‘scan for images’ button errors out with ‘page not found’ after every 100 or so and Dreamhost is no help with that issue (separate problem that i don’t have an answer to, if anyone knows).

thanks.

https://www.ads-software.com/extend/plugins/nextgen-gallery/