Mypet Spigot Error

[J-SHarper]

http://pastebin.com/8CzWURRR

Appears to happen when a pet is damaged. Spams my console continuously and lags the server. Thanks in advance!

Edit: Sorry, forgot to include... running Mypet build #563, and Spigot version #1280.

[scomans]

Please update your Spigot and check if this still happens.

Edit: Every plugin which is compiled against the Bukkit build 1882 or higher will cause this errors. There is nothing I can do :/

[FabioZumbi12]

Same with me, but with McMMo: mcMMO-Dev/mcMMO#1838

Appear be a issue with Spigot/Craftbukkit :/

[scomans]

The Bukkit team changed some internal stuff and Spigot needs to update too.