Hello Everyone!
It's been a while but since this is my most popular plugin I thought I'd come back and update it with a complete overhaul/rewrite. More coming soon.

Changes:

• Complete overhaul of the base code.
  
• Customisable GUI text on all elements of the plugin including chat messages in a locale.yml
• Customisable vault sizes and icons in the UI such as Chest or Ender Chest etc in the config.yml (Basically the entire GUI is customisable)
• Each vault data saves to its own file.
• Admins can view other players vaults.
• Cleaned/Removed some old bugs
• Added vault auto-saving feature and cleaned up saving overall.
• Updated support for 1.20.x and 1.21

Lots of changes and many additions I'm happy to get in this plugin.
Enjoy!