Problem/Bug Shop GUI help!

Hello there lads, I have a really big problem I can't figure out how to solve, I am currently running a skyblock server and I want there to be an ASC (Auto sell Chest) But I can figure out how to add the chest into the shop. Whenever I try to get the id it just reads it as a regular Minecraft chest. I really need some help to get that auto sell chest on my /shop



I am using EconomyShopGui as my shop plugin

Thank you <3