Your case is very unique since is very serious (crashing the site) and also you are running the last WP version (3.4.1) which
discard any compatibility problem with previous Wordpress versions. That's made the problem even more strange.
In our tests, the problem came up:
If the GeoLiteCity.dat is corrupted, the plugin wrongly tries to get data from the file, causing the site goes down. (!)
Even the plugin does its best to download the database safely to your site, it seems there is a chance of get a bogus file from Maxmind. This problem could manifest for several reasons (your ip is blacklisted in Maxmind, slow connection , transference aborted which could happen in dynamic IP scenarios or manually aborted for changing the page while downloading, etc.)
We are currently analyzing this condition of error, since the plugin already catch the problem in every scenario. It seems there is another condition, probably new one.
If you can get access to your Wordpress installation follow this steps to fix the problem:
- Download a new version of GeoLiteCity http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz to your desktop . Currently is around 11.1MB
- Decompress it using some tool (for example , WinRaR)
- Upload the file to [statcomm plugin installation]/def folder, replacing the incorrect file. That should temporarily the problem. The database is not automatically replaced, it requires manual assistance so you can be safe.
We apologized for the serious inconvenient. We are working to include a improved check to avoid this to happen in the next release (July 22).