Hello, can the plugin run on Carbon? Now I have a carbon, I often have a problem that players don't have the items I have in cfg in their inventory. 

I haven't tested it on Carbon, but I would expect it to work. Most of the functionality that could be affected by the framework side of things is in Item Retriever, so I'm wondering if other aspects of Item Retriever are working for you (such as Backpacks integration, if applicable to your server).