Allows you to show your NaNoWriMo Stats in posts, pages and sidebar widgets.
NaNoWriMo is short for National Novel Writing Month. It is a worldwide contest for (hobby)writers to write 50,000 words in one month, November. For more information, please visit http://nanowrimo.org.
I'm afraid this is not an issue of the plugin but of http://nanowrimo.org. During November, this site gets a huge load of data traffic, which causes it to shutdown quiet often during this month. There is nothing that can be done about this, except improving the NaNoWriMo servers.
Unfortunately, Camp NaNoWriMo does not provide statistics info. So no, you cannot use this plugin with Camp NaNoWriMo - hopefully in the future!