FIXED: Missing reference to GroupTools module in ChatManager module.

diff --git a/ChatManager.lua b/ChatManager.lua
index b338528..6ca9fe6 100644
--- a/ChatManager.lua
+++ b/ChatManager.lua
@@ -40,6 +40,7 @@ C.ChatManager = {

 local CM = C.ChatManager
 local PM = C.PlayerManager
+local GT = C.GroupTools
 local CCM = C.CommandManager
 local CES = C.Extensions.String