What steps will reproduce the problem?

1. Make /t withdraw 5000
2. The money isn't removed from town bank
3. You can duplicate money

What is the expected output?

Towny version

Server version

Please use Pastebin.com to link the following files

1. Your full server startup from the logs\latest.log: https://hastebin.com/share/iquyeqolex.makefile
2. Your Towny config.yml: https://pastebin.com/Z6aqkSrE
3. Your townyperms.yml: https://pastebin.com/YxYkjRqH
4. Your log's error: None

(optional) If this is to do with permissions,
5. Your permissions file:

(optional) If this is to do with chat,
6. Your chatconfig.yml:
7. Your channels.yml:

What is the name of the author of your economy plugin? It likely has an improper vault economy implementation that isn't compatible with Towny.

Encouraging piracy by using offline mode is also not very nice

We already know that two plugins named "Economy" do not work with Towny: https://github.com/TownyAdvanced/Towny/wiki/Frequently-Asked-Questions