Problem upgrading to Drupal 8.8.0

Hello, i have bought and installed Nation theme. If i install the demo version it works fine with its Drupal 8.6.9 version. If i try to upgrade to 8.8.0 version (deleting core and vendor folders), i get a
"Fatal error: Interface 'CommerceGuys\Addressing\AddressInterface' not found in /Library/WebServer/Documents/nation/modules/contrib/address/src/AddressInterface.php on line 11"

Which is the correct way to upgrade to latest Drupal version? Thanks in advance and greetings