Created attachment 4771 [details] a patch i used to make things build error-report-web is the source code behind https://errors.yoctoproject.org/Errors/Latest/ had to change couple of lines to work with python3.5 using a version > python3.5 would mean updating django too..
Yi please create a bug to track the upgrade to the newer version of python/django.
port to python3 using the attached patch is merged http://git.yoctoproject.org/cgit/cgit.cgi/error-report-web/commit/?id=350188e385c96b51e5f645b4e45061724949d017