Hello All..

I have a gallery that I work with that has 1200+ galleries and 17000+ images..

and while using the admin area of this site, I sometimes encounter 500 server errors.

Could this be because ZP has reached a limit in the number of galleries and/or images manageable by ZP?

Not that ZenPhoto reached a limit, your server likely hit a limit however.

Take a look here:

http://www.zenphoto.org/2009/03/troubleshooting-zenphoto/#11