meaning of "non-judgmental and safe group settings"

I stumble upon this sentence and don’t completely get the whole meaning.

Unlike Freud, Moreno focused on public and social therapy. He viewed leaning and living as socially constructed experiences ans reasoned that if patients could learn to work out distantly represented problems within non-judgmental and safe group settings, they could be better equipped to work out the real problems that occurs in day-to-day situations.

what confused me is “within non-judgmental and safe group settings”. please interpret it. thank you a lot.

It means groups that are not excessively critical or hostile, especially with respect to moral, character and personal failures.

it’s clear now. thank you for your prompt reply.