Plugin Help Having Towny issues

As far as I know I'm using as up-to-date plugins that I can. what i'm trying to do is have the economy plugin GoldIsMoney and Towny work together. I can make a town and it will use the GoldIsMoney currency, but when I try to add money to the bank no matter what I do it says 'you don't have enough' even though I clearly have more than is needed.

Is there any sort of way I could fix that because I would really like to have GoldIsMoney(or perhaps something like it) as my currency?

 

I'm assuming GoldIsMoney is a physical currency plugin? The only one I know of that works with Towny is gringotts.

 

Well gringotts seems to work but only sometimes. im still getting the 'you don't have enough' message.

 

Are you using Vault?

 

yes I am