Hi. en:Wikipedia:PetScan is down again, and has been for some days; I wonder if this is related to https://phabricator.wikimedia.org/T251567 ? Could you possibly take a look at this?
Topic on User talk:BDavis (WMF)
Upstream bug report with Magnus is at https://bitbucket.org/magnusmanske/petscan/issues/163/petscans-down. I can only blindly restart this software, not fix any of its problems. Restarting it seems to only make things better for a few minutes or hours. Magnus needs to work on this software or recruit someone else to take it over or at least co-maintain it with him. There is really not much that I can usefully do to support the application.