conflict with complianz plugin

Hi, I have installed the plugin “complianz” and got the following error:

Fatal error: Declaration of YellowTree\GeoipDetect\DataSources\AbstractReader::country($ip) must be compatible with GeoIp2\ProviderInterface::country(string $ipAddress): GeoIp2\Model\Country in /xxx/wp-content/plugins/geoip-detect/data-sources/abstract.php on line 105

Any idea how to fix that? I appreciate your great work and any help!