Please use gitlab bug tracker at https://gitlab.x2go.org/ for any new bug reports or for viewing current bugs. Please login to gitlab once with your GitLab.com account. Then you need to request access first via the x2go-user mailing list. See Overview on X2Go Community Communication
For historical reasons you can access the previous bugtracker as described below. All (relevant) bugs have been moved to gitlab.
If you know either the X2Go component or the bug number you can also access the information directly:
http://bugs.x2go.org/<nnn> (where <nnn> is the bug number) http://bugs.x2go.org/<x2go-component> (where <x2go-component is a valid X2Go component) A complete list of X2Go components with open/closed bugs can be viewed with this URL: