Error with funny redirect SpawnLinkedTicketInQueue

After installing this plugin I get the new button to create linked
tickets, but when I click on “Create” it redirects to:


As I can see on the code it tries to get the WebURL to redirect, but
something happens in the meantime that breaks it:


I got the plugin from here:

Maybe is something missing on my config? I dont have a hostname (yet)
so I am acessing the server by its ip address.

José de Paula Eufrásio Júnior (coredump)
MCSO, GRC Professional