Wordpress- NextGen Gallery problem?

[etherealfocus]

One of my WP websites uses NextGen Gallery as part of a custom configurator. Last week it broke - clicking Edit Option (screencap at http://tinypic.com/r/2dqro79/5 ) should bring up a list of options; instead it brings up a little empty box. It looks like it's calling NGG as part of the list so I'm thinking that might be the culprit. I haven't changed anything and even rolled NGG back to 1.9.5 which was current when the customization module was written, but it's still broken.

I can post slightly redacted code for the customize page in the screencap as well as the page it's supposed to open. I know enough PHP to understand basically what the code is doing, but not enough for debugging. The page wasn't edited around the time the problem happened anyway...

Ideas?

 

[etherealfocus]

Note - I don't think the PHP code is the problem. It hasn't been modified since it was finalized close to a year ago. I've already tried undoing all my page edits since we noticed the bug - nothing. Only other things I've done recently are tweaking the footer navigation and adding some new content to other pages. What other troubleshooting can I do?

 

[Markbnj]

Well I know they made some significant changes to it over the last few versions. I'm running 2.0.0 and 2.0.14 is queued up for installation. Do you have backup of the site's files you can use to do a file-by-file comparison?

 

[etherealfocus]

Yep, that's what I'm doing today. Gonna be all kinds of fun. On the bright side, we're finally bringing up a complete test server so that should help a lot...