java.lang.ClassCastException: org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer cannot be cast to com.earth2me.essentials.OfflinePlayer
at com.earth2me.essentials.Essentials.getOfflineUser(Essentials.java:551)
at com.earth2me.essentials.Essentials.getUser(Essentials.java:534)
at com.earth2me.essentials.api.Economy.getUserByName(Economy.java:67)
at com.earth2me.essentials.api.Economy.getMoneyExact(Economy.java:85)
at com.earth2me.essentials.api.Economy.getMoney(Economy.java:81)
at net.milkbowl.vault.economy.plugins.Economy_Essentials.getBalance(Economy_Essentials.java:78)
at net.milkbowl.vault.economy.AbstractEconomy.getBalance(AbstractEconomy.java:20)

Version of Vault you are using?

Can't give you that one.

I recently added an automatic bug reporting system to my plugin which is how I got this StackTrace.

You can just do /ver in game... A good bug reporting system would capture the whole log, filter out crap and pastebin it.

Well then my bug reporting system is good I guess. If this is not helpful I'll just close it.

We just need versions of plugins to help

I guess I can close this.