NCIPServer will crash on Ubuntu 16.04 if data is posted with mime type of application/xml. This is because of changes made to Dancer that do not work with certain modules from HTTP::Body which Daner requires.
I believe that this will also happen on Debian 8 Jessie and Debian 9 Stretch, but I have not thoroughly tested it on those distributions.
A long term fix for this issue would be to implement bug 1673974 and remove the dependency on Dancer 1. Another possible long term fix would be to move to Dancer 2.
In the meantime, you can apply the attached patch to /usr/share/perl5/HTTP/Body/XForms.pm.
The attachment "Patch for HTTP::Body::XForms" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.