7:50:07 PM CONSOLE: java.lang.AbstractMethodError: org.gestern.gringotts.api.impl.VaultConnector.hasAccount(Lorg/bukkit/OfflinePlayer;)Z

Vault updated their api.

Because you are injecting into vault. It is best to follow suite.

What version are you using? The latest version of Gringotts supports the new API.

Vault version 1.4.1-b436

It would seem you are on the correct version. I will have to look into this on my server than. Sorry for the report.

Btw, I just uploaded Gringotts v2.3 to Bukkitdev: http://dev.bukkit.org/bukkit-plugins/gringotts/files/28-gringotts-v2-3/
It contains another little fix relative to the v2.3-RC1

Thanks again :)

I think we are not on that version of gringots. That may also be the cause. I checked changelogs. Maybe I missed the changelog.

Quick question. What is this old derby database stuff?

I forget. I have no been in the source code in a while. Had no need to look at source lately

Earlier versions of Gringotts required a Derby database. I replaced this with the Bukkit-builtin DB.

Thanks I think I remember that change then. Thanks again for the
support. Happy Coding ;)