Plugin upgrade breaks site

Hey there, I get 500 errors on all my WP websites that have Tor Blocker installed on various different servers – here’s the error message I get:

Warning: require(GeoIP/geoip.inc) [function.require]: failed to open stream: No such file or directory in /home/.../wp-content/plugins/tor-exit-nodes-blocker/torblocker.php on line 833

Fatal error: require() [function.require]: Failed opening required 'GeoIP/geoip.inc' (include_path='.:/usr/local/php53/pear') in /home/.../wp-content/plugins/tor-exit-nodes-blocker/torblocker.php on line 833

https://ww.wp.xz.cn/plugins/tor-exit-nodes-blocker/