From f847f7c49d8a13fa80a29c33b6d8802da9dd40aa Mon Sep 17 00:00:00 2001
From: Ciaran Fisher <cfisher88 [at] gmail [dot] com>
Date: Sun, 1 Nov 2015 20:36:03 +0000
Subject: [PATCH] Fix for possible crash

---
 CTLD.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CTLD.lua b/CTLD.lua
index e2b23e6..90f79dd 100644
--- a/CTLD.lua
+++ b/CTLD.lua
@@ -4329,7 +4329,7 @@ function ctld.getGroup(groupName)
     local _filteredUnits = {} --contains alive units
     local _x = 1
 
-    if _groupUnits ~= nil then
+    if _groupUnits ~= nil and _groupUnits:isExist() then
 
         _groupUnits = _groupUnits:getUnits()