So, @iiVoiX found this Reddit post from 8 months ago, in which the user reached out to the Hoster (Clanwarz)…
The snapshot in fact is encrypted and after reaching out to them they stated:
“First, no response, then finally they got a response stating that they absolutely ‘will not’ decrypt the files for their clients & that Clanwarz snapshots are only to be used on the Clanwarz service.”
So I’m sorry for you, but there is probably no way to decrypt them without help from the Hoster which no longer exists…
