Every week a complete backup of the server is performed, i.e. every file of the Minetest server is backed up.
Because some files are confidential (like accounts & passwords etc.) and should not be public to everyone, they are encrypted.
To get those files, you need to request the decryption key. For that, please choose a understandable explanation.

The files are sorted into different groups. Each group is encrypted separately.

Here's a list with examples:

• Map
  Is always unencrypted and contains map files like:
  • map.sqlite
  • map.meta
  • force_loaded.txt
• Builtin
  Contains the builtin files that can be found under /minetest/builtin/*
• Minetest game
  Contains the minetest_game that can be found under /minetest/games/minetest_game/*
• Mods
  Contains mods like:
  • 3d_armor
  • mesecons
  • forum
• Configurations
  Contains the configuration files like:
  • minetest.conf
  • game.conf
• Mod data
  Contains the mod data files like:
  • areas.dat
  • character_creator.mt
  • stats.txt
• Ban data
  Contains the ban data files like:
  • xban.db
  • EUBan.db
  • ipban.txt
• Authentication data
  Contains the authentication data files like:
  • auth.txt
  • /minetest/worlds/my_world/players/*
• Confidential mod data
  Contains the confidential mod data files like:
  • mail.db
  • forum
  • bookmarks
• Bash scripts
  Contains the bash scripts that are needed to run the server

The backups are available for ten days until they will be deleted

Every backup and group uses a new encryption key.
If you request a decryption key, it's only valid for the specific backup.

Just choose the best matching group and notate in your explanation what specific file you want to have.
You will get the decryption key for the right group.

Usually the request will be processed within 24 hours

For windows use 7-zip and kleopatra
For linux use tar and gnupg