Hello FastHub Developers!
I was a contributor here before and back then we didn't grant our copyright to @k0shk0sh, sign a CLA or anything, so everyone contributed under the GPL producing respective GPL code(the cancerous nature of GPL as it is).
Recently @k0shk0sh made a mistake and changed the license file(with changes that are void according to GPL anyway) without asking explicit permission to do so from all contributors to the repo.
The problem should be easily fixable by reverting this misstep, although if there were any new contributors who have sent code in the timeframe from 3rd September till now their code is licensed under the new text... which has void terms, so it's a much lesser problem.
Great that we got it before it's too late and people started suing each other