Small message prefix problem

Hi, I found a small issue with the chat messages. If I leave the language prefix empty, the plugin still adds : before the message.

For example, with:

"Chat.Prefix": ""

the message appears like:

: You don't have enough money to upgrade this attribute

Could you make it so the : separator is only added when Chat.Prefix is not empty?

Hey, I found another issue: when I turn on a furnace and leave its inventory open, it starts smelting and consuming fuel, but it still appears to be off no fire effects, no operating sounds, and no comfort. Please check your private messages; I’ve sent you the details and a fix that resolved it on my server.