In an install of Omeka on a test server, I made a few changes inside the code for my custom needs. Now I'm trying to move to the production server, but for some reason, none of the routes work: all the generated links like .../items and the like don't work. I copied the whole folder, and I changed the db.ini info, so that I Omeka is installed.
Any ideas what would cause the routes to fail? I didn't make any changes to anything relating to that.