There is just so many things wrong with this.
Are you trying to make the variables player specific? You need to make variables such as {ban::%arg-1's uuid%}
Use the command /worlds to see if you're in a different world.
Also, make sure nobody changed the world/level name on the file manager, and if they did change it, reset it back to whatever it was called before, normally it is named world.
Whenever trying to activate your server, are you able to access the File Manager? If so, try to grab your latest.log and send it here. Here's a tutorial incase you're not familiar in how to get access to your logs: https://minehut.xyz/faq/panel/logs
Follow this tutorial in order to link your account: https://minehut.xyz/faq/minehut/account-linking
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Siga este tutorial para vincular su cuenta: https://minehut.xyz/faq/minehut/account-linking
This would probably be better suited for the Skript Section, however I believe your best bet would be using the effect `add (amount) to (player)'s balance`, which just uses the default Vault & Essentials economy.