Plugin Help Strange name

I have a craftbukkit serevr with some plugins. I want different inventory between worlds so I installed a plugin called multiverse inventory. But I make a custum kit with essentials with custum names as you can see down.
I go on a world I take my kit. After I go to hub (Multiverse-inventory works proprietly)
but when I rejoin to the same world I have in the inv. my kit but with Strange names. Please say how to resolve this theard.

 

@MikeyJY
It seems that multiverse is having difficulty translating the color codes. Are you sure you are using the newest version of MVI? If so, report this issue on their page.

 

I think I konw what is the problem: I had allready a floder called multiverse core before 1 mounth and when I reinstalled new version of multiverse the server load the plugin with old configuration. Thx.