I am not sure if sharing the "solution" here is acceptable like the rule for stage 3. But it seems there were no rules that say we can't share what to do for the  stage 4. So, this is the steps that you need to do:

1. Go to the link and click the "more information" on humanisbeing
2. You'll be redirected to SVV page, click the will o' the wisp
3. You'll be redirected to the page with full instruction that strangely like a job application. This is where I stopped.

So maybe the stage 4 is about....... Looking for some employee?