Latest version still failing

Had to disable a couple of months ago, tried latest update but still failing on any page on the site. Error message below:-

Fatal error: Uncaught Error: Call to undefined method MaxMind\Db\Reader::getWithPrefixLen() in /var/sites/s/stdominicstone.org.uk/public_html/wp-content/plugins/wp-statistics/includes/vendor/geoip2/geoip2/src/Database/Reader.php:246 Stack trace: #0 /var/sites/s/stdominicstone.org.uk/public_html/wp-content/plugins/wp-statistics/includes/vendor/geoip2/geoip2/src/Database/Reader.php(217): GeoIp2\Database\Reader->getRecord(‘Country’, ‘Country’, ‘81.107.210.28’) #1 /var/sites/s/stdominicstone.org.uk/public_html/wp-content/plugins/wp-statistics/includes/vendor/geoip2/geoip2/src/Database/Reader.php(90): GeoIp2\Database\Reader->modelFor(‘Country’, ‘Country’, ‘81.107.210.28’) #2 /var/sites/s/stdominicstone.org.uk/public_html/wp-content/plugins/wp-statistics/includes/class-wp-statistics-geoip.php(184): GeoIp2\Database\Reader->country(‘81.107.210.28’) #3 /var/sites/s/stdominicstone.org.uk/public_html/wp-content/plugins/wp-statistics/includes/class-wp-statistics-exclusion.php(378): WP_STATISTICS\GeoIP::getCountry() #4 /var/sites/s/st in /var/sites/s/stdominicstone.org.uk/public_html/wp-content/plugins/wp-statistics/includes/vendor/geoip2/geoip2/src/Database/Reader.php on line 246

The page I need help with: [log in to see the link]