Hi
Sorry you are having issues with the plugin.
There is an update coming this weekend. I'm not sure of the details but I know that country blocking is a big part of it. I'm sure the dev team haven't got back because they have been busy working on the plugin. It;'s interesting that 40% of canada was blocked. Were they legit traffic or looking for wp-admin, etc. Can you figure out some of the urls they were trying to hit?
tim