[Towny 0.96.7.13] java.lang.StackOverflowError during economy-related actions.

[Yldales]

Hi.

(This issue is a repost of TownyAdvanced/Towny#4890).

What steps will reproduce the problem?

1. Set up a server using Paper 626.
2. Install Vault 1.7.3.
3. Install Towny 0.96.7.13.
4. Install Gringotts (MinecraftWars/Gringotts) (Compiled from 278de97)
5. Use /town create Whatever, then /town confirm.
6. The java.lang.StackOverflowError: null error should occur, freezing Towny, and spamming the logs with the same error.

What is the expected output?

What is your Towny version?

Towny version 0.96.7.13

What is your spigot/craftbukkit version?

Paper version git-Paper-626 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)

Please use Pastebin.com to link the following files:

1. Your full server startup from the logs\latest.log : -
2. Your Towny config.yml (if using MySQL please remove password,) : Default file.
3. Your townyperms.yml : Default file.
4. Your log's error : https://pastebin.com/raw/WaEvLCvr