Hi @registrace, your database entries seem correct, as well as your wp-config.php configuration, it's really strange you get redirected to the xip.io instance.
Are you sure the DNS for your domain matches the public IP for your current instance? I'm mentioning this since, once Google shut down the instance, the IP addresses are usually reset. It could be possible that it is using another WordPress than the one you're expecting it to be.
You can check that if you run this command in the instance, the same IP is returned:
Next, are you able to log into your WordPress site admin? If so, are you able to configure the network? In case there is a misconfiguration there on domain names. If you don't find any, but are still able to log in, you can follow this guide to migrate WordPress to another instance.
If you are not able to configure the network, try migrating the WordPress database to a new instance by exporting the database and importing it in the new instance.
Hope it helps!