You'll often need to rename your hosted files before uploading them to shared servers.
The only file you CAN'T rename is GoZyncMobile, but since that file isn't hosted, that's OK.
If you rename GoZycHosted, be sure to update its External Data Sources path in GoZyncMobile to reflect the new file name. If you rename GoZyncLicense, be sure to update its External Data Sources path in GoZycHosted. You'll likely need to rename these two hosted files if they are on a shared server with as commercial hosting provider.
If you rename your own hosted and/or mobile files, be sure to update their External Data Source paths in GoZyncMobile.