Hi!
First of all it's a great plugin, thanks!
I found 2 little "translation bug" in Quizzin v1.01.4:
1. in quizzin.php the quizzin_init function should be like this (corrected path):
function quizzin_init() {
load_plugin_textdomain('quizzin', 'wp-content/plugins/quizzin/lang' );
}
2. please remove the french EVENTR translation file from the Quizzin package