ChestShop-3 VS chestlocker

On my server, I use The New Economy and ChestShop for my economy (the economy runs on diamonds which is why I use TNE). The problem is that when a player is in a world unrelated to the server's economy and another player buys an item from their shop, the player in the incorrect world gets paid. There is no way to transfer the money since I also use MultiverseInventories. This becomes a problem when players are in a PVP match in the Games world and another player buys from their shop in the Survival world giving the player in the PVP match diamonds.

For a chest shop, the first result on google looks good. (https://www.spigotmc.org/resources/chestshop.51856/)

For player shops, there's always the Auction House - perhaps it's not really a shop, but I feel like every survival based server should consider it. To return to the tradition, on our network we allow players to create their own shops using signs on chests. I'm sure there's some GUI based player shops out there, but personally I really like the nostalgic feel of the signs on chests.

It's a chest/container locking plugin that is very light-weight and simple to use. You can lock pretty much every container in Minecraft with it. The code is very clean: https://github.com/earomc/chestlocker/tree/master