On https://www.kolab.org/, the Issue tracker is linked to issues.kolab.org, it should go to https://git.kolab.org/ instead
Also, the download button points to https://git.kolab.org/tag/bug_reports/ while the image to its left directs to the correct URL.
Raising priority. Come on, please fix this - it's ridiculous!
I don't remember where to do this in a way that fixes it permanently, so I've hot-fixed it.
One last item to fix: the link behind the download button.