Hi @antonioribeiro
The latest version of thhis package, changed the compatiblity of the psr/simple-cache to ^3.0.
The problem is that now there's an incompatibility between PragmaRX\Countries\Package\Services\Cache\Service and Psr\SimpleCache\CacheInterface:
Declaration of PragmaRX\Countries\Package\Services\Cache\Service::get($key, $default = null)
must be compatible with Psr\SimpleCache\CacheInterface::get(string $key, mixed $default = null): mixed