Versions
CraftBook version: 3.10.1;d29bd15
Bukkit version: git-Spigot-a99063f-fad2494

Describe the bug
When activating a command item with the PLAYER_CHAT event, the item does not activate, and this error appears in the console:
https://pastebin.com/udTVCP53

To Reproduce

1. create a command item on the PLAYER_CHAT event running any command and try to use it

Expected behavior
Attempting to make a console microphone that sends any message you say while holding it as a console /say command.
Commands: say @m
run-as: CONSOLE
Instead the above error occurs

Fixed.