As bad as it is that you had items taken from you, it is your responsibility to make sure that your chests are locked, as stealing from unlocked chests is completely legal. In the future before inviting other users that you do not trust over, make sure that all valuable that you have stored are contained. Locked.
Hey Chompin, I'm sorry for your lost items, but unfortunately, it is your responsibility to lock your chests/items! Again, I'm sorry for your loss and we do not refund lost items. The commands for locking chests/items: /lock (locks an item only you can use) /cmodify <username> (lets another user use your locked chest) /cpublic (lets everyone use your chest but they are unable to destroy your locked item) Locked. -Shawn