Gallery will not work

I am using modx revo 2.0.8pl and gallery 1.1.0pl

I moved my site to a new server, and gallery would not work. So I uninstalled and removed the package. Then reinstalled it, now when I try and create an album it won’t save - the save progress bar just keeps progressing but never saves.

I have tried multiple browsers, uninstalling / reinstalling multiple times.

please help.