I wrote this using Total Economy but that should totally not do anything as I’m only using the service functions provided by sponge.
In order to tell you more or be able to fix that I’d need a bit more information (like any dev with any bug):
- What sponge version do you use (type sponge version into the server console)
- What plugin version do you use (probably the latest…, ok)
- Please take a look at the server log and send me the fill stacktrace (what you got is only one or two lines that do not really help)
- How and when did that error occur, is it repeatable (you don’t need to go all the way and test all possible combination of actions, but something like “every time i try to do this and that” is a pretty good start)
If you got all that, you can either post it here or (what i perfer) open an issue over on GitHub (just post it here if you don’t have an account)
After that I can start to take a look at your problem with the plugin.