The problem is that on line 2991 of wassup.php there is only <? } //end if geoip_map where there should have been <?php } //end if geoip_map (note the extra ‘php’). This only applies on some servers, which is why not everyone is experiencing the problem.
If you put the plugin where you want it and use a text editor to change this line, the plugin should work ok. Hope that helps.