Systems traceability problem

Hello community,

I started using the "systems traceability" widget a month ago, at first it was working just fine even though i had to refresh my content sometimes to load new elements, however, once i created my first link-set the behavior of the web application started to act strangely enough, i had to delete the widget and pin it once again to the dashboard, i couldn't use my link-set, it takes a very very long of time to refresh and once the refresh is done i want to add the link-set to the context, it blocks every single time. i deleted my cash did everything without a result. Can anyone help ?