After doing some cursory searching around, it seems like you're not the only person having trouble with this plugin.
I suggest that you contact the vendor directly: NETAPSYS. It also looks like @Franck Bebel, one of the NETAPSYS folks, has been replying to customers having similar issues.
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
This September 6-7, hundreds of Atlassian App developers will flock to Barcelona Spain to build skills, discover product roadmaps, meet face-to-face with the Atlassian team, and learn how to extend t...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG