Regular members with the addon are unable to see the other guild chat about greenwall

[mrogaski]

CC toon, CC guild:

Date: 2014-09-17 22:16:42
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\GreenWall\GreenWall_Core.lua line 1486:
   bad argument #2 to 'format' (string expected, got nil)
Debug:
   [C]: format()
   GreenWall\GreenWall_Core.lua:1486: GreenWall_OnEvent()
   [string "*:OnEvent"]:1:
      [string "*:OnEvent"]:1
Locals:
(*temporary) = "Rx<GUILD(%s), %s>: %s"
(*temporary) = nil
(*temporary) = "Woad-CenarionCircle"
(*temporary) = "that was the greenwall developer who is working to connect our 2 guild chats"
(*temporary) = "string expected, got nil"

AddOns:
  Swatter, v5.20.5464 (RidiculousRockrat)
  DebugLib, v5.1.DEV.337(/embedded)
  GreenWall, v1.5.0-beta.1
  Stubby, v5.20.5464 (RidiculousRockrat)
  WIM, v3.6.18
  BlizRuntimeLib_enUS v5.4.8.50400 <us>
  (ck=c9)

[mrogaski]

CC toon, SoE guild:

Date: 2014-09-17 22:29:43
ID: 1
Error occured in: Global
Count: 1
Message: attempt to concatenate a nil value
Debug:
   [C]: strjoin()
   GreenWall\GreenWall_Core.lua:568:
      GreenWall\GreenWall_Core.lua:516
   GreenWall\GreenWall_Core.lua:1489: GreenWall_OnEvent()
   [string "*:OnEvent"]:1:
      [string "*:OnEvent"]:1
Locals:
(*temporary) = "#"
(*temporary) = "C"
(*temporary) = "#"
(*temporary) = nil
(*temporary) = "##testing"
(*temporary) = ""
(*temporary) = "#"
(*temporary) = "testing"

AddOns:
  Swatter, v5.20.5464 (RidiculousRockrat)
  DebugLib, v5.1.DEV.337(/embedded)
  GreenWall, v1.5.0-beta.1
  Stubby, v5.20.5464 (RidiculousRockrat)
  WIM, v3.6.18
  BlizRuntimeLib_enUS v5.4.8.50400 <us>
  (ck=c9)