Minor debug on a custom PHP script

After a domain name change and server migration, we have a little custom PHP script which doesn't works properly.

Main issues (user side)
- the right country is no longer properly detected (whereas the user IP is still properly detected)
- results are no longer loaded on the main page

Probably some functions are outdated or some path now incorrects.

Tech usages:
> Usual PHP version: 5.6
> Admin template: Matrix Admin