Plugin has been updated to support 1.7.9 all the way up to 1.13.2 (Current version)
The plugin unfortunately used to completely rely on item id's instead of names, now that id's are removed from minecraft, the loading system has changed and therefore the files should change too, to avoid getting errors r eset ALL files, if you don't wanna lose all files you gotta go ahead and translate every id stored in the files to the actual item name and you will most likely end up with mistakes / more errors.

This version has not been tested on an actual server and has not been tested with libs disguise, apparently it costs money now ;_; so just use IDisguise

You will most likely find bugs so please report them to me quickly. there is alot of changes that were added just to support BOTH 1.13 and previous versions