Hi there - a bit of feedback as this has been looked into pretty extensively by our team over the last week or so :
We've made a change to the most likely culprit that could be generating the 'bad' urls, which would instead now always point to a humix.com page instead of those URLs you're seeing. We've also added 'nofollow' tags to the links which may help as well.
All this to say, can you now try revalidating via GSC to see if google is still finding these bad urls for pages that don't actually exist?