Hey.
Ony my server I use the latest version of Gringotts from BukkitDev and The lastest version of Towny. When Towny tries to collect daily tax from a town which DO NOT HAVE its vault created an error like this: http://pastebin.com/4TurFgWC shows up and Towny stops collecting taxes. The correct procedure would be:
Collecting taxes:
-> if town vault was created check its balance then destroy town or just collect tax
-> if town vault was NOT created treat its balance as 0 and destroy town.

Please fix this ASAP.
Regards

This looks like something happening due to a Spigot optimization. It may or may not be resolvable.

Hey there, will do our best to have this resolved for you, check back in a few days though as I just started working on this plugin, so I'm gonna have to do some digging first and figure out my way around it.

Effectively duplicate of #88

If you are on the newest version of towny. I have added a setting value for async economy timers

Please set that value to false to fix this issue. It is basically a work around until this plugin is thread safe.

  use_async: 'true'

Should be set to

  use_async: 'false'