Added 26.1 support

Fixed a bug where some auctions would be impossible to purchase and some would be stuck in the AH gui

Added 1.21.11 support

Hotfix:

• Removed data saving when the plugin crashes (avoids auction wipes)
• Added an error message if the wrong version of NexusCore is present

• Added individualized language picking
• Fixed an error on startup when dependencies are missing
• Added two bStats metrics: Auctions Volume and Money Earned