If your site was setup correctly, the import/export functionality should work without issue. I come across this issue every now and then when I create a new site and the client hasn't made their mind up on which license to use yet.
Device Profiles is not available with the free or base version. So when you export your site, navigate to that option and don't export or import it (uncheck the boxes for any device profile info).
Regarding the version error. It appears you need to apply the hotfix on your "new" site to be able to import your exported site. In most cases you can import older versions into new versions but never can you import new versions into old versions.