Plugin Version

3.10-SNAPSHOP (build 137)

Plugin Config

https://pastebin.com/2BafvZF9

Server Version

CraftBukkit 1.14.4

Server Log

https://pastebin.com/Ps7DTyja

What other plugins are you running?

CoreProtect
WorldEdit
Admin-Chat
ChatColor2
AdvancedBan
BetterSleep
Vault
DiscordSRV
Essentials
ChatEx
Dynmap
TabList
I will provide versions if needed. All plugins are up to date as of 8/10/2019

What is happening?

I created an AdminShop where people can buy and sell diamonds. But it will only allow people to buy or sell 1 item. I have the sign set to one at a time

What did you expect to happen?

I expected them to be able to buy or sell however many they wanted just 1 at a time

Additional context

As an OP I am only able to sell diamonds I buy from the shop

Please update to the latest development build and try if it is still an issue. Also please provide a screenshot of your actual sign setup.