i wanna start by saying this is a great plugin. however if you want to use server rewards or have the gui tied to an npc and you dont know much about the coding aspect of this then it could be troublesome as there isnt much posted directing how to do certain things.

Excellent plugin.

Everything works without worries.

Still a few small changes or additions to make but it's really great.

The criticism posted by @NxG-Chaos , is completely done, the balance is deducted very well for the buyer and is updated well for the seller (just configure your config .json file correctly and specify in it if you use a "plugin" or an "item" in the "Type" part in the "Setting Economy" section).

So I recommend this plugin 100%.

Very good plugin and support also here as usual very fast  

RESOLVED: Would like to thank Gbutome for the help below. Plugin now works and looks great!

For others having his is what made my issue confusing:

The field "Type (Plugin or Item)": null, is what comes standard in the config and it still allows for most of the economic hooks to function EXCEPT the withdraw function. Once this field was changed to "Type (Plugin or Item)": "Plugin", this then allowed for the last hook of withdraw to function. 

Giving 4/5 Stars now with 1 star missing for not hearing back from the Dev on the issue 

OLD: This plugin will not remove balances from players who make purchases, so all items are free! Until this part is resolved, giving it at 1 star as its pretty useless when all items are able to be purchased for free!

Edit: It guess I should have watched your video even closer, the bug even exists in your video, your balance remains the exact same after making a purchase even there. While you don't have a UI that shows your balance live outside of this plugin, still seems to have the same issue even with your demo video....