today i started getting this error randomly. wasnt doing anything special, just chilling in valdrakken.
game and addons in its latest version.

10x ...eElvUI_WindTools/Modules/Social/ChatText.lua:2007: attempt to concatenate a nil value
[string "@ElvUI_WindTools/Modules/Social/ChatText.lua"]:2007: in function BN_FRIEND_INFO_CHANGED' [string "@ElvUI_WindTools/Modules/Social/ChatText.lua"]:1976: in function <...eElvUI_WindTools/Modules/Social/ChatText.lua:1974> [string "=[C]"]: ? [string "=[C]"]: ? [string "@ElvUI_WindTools/Modules/Social/ChatText.lua"]:1971: in function ?'
[string "@LibSharedMedia-3.0-8020003/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:109: in function <...edia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:109>
[string "=[C]"]: ?
[string "@LibSharedMedia-3.0-8020003/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:19: in function <...edia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[string "@LibSharedMedia-3.0-8020003/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:54: in function `Fire'
[string "@ElvUI_Libraries/Core/Ace3/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <...UI_Libraries/Core/Ace3/AceEvent-3.0/AceEvent-3.0.lua:119>

Locals:
self =

{
SetDefaultModuleLibraries = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:363
Enable = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:290
UnregisterAllEvents = defined @LibSharedMedia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
EnableModule = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:328
modules = {
}
GetModule = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:206
IterateEmbeds = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:438
defaultModuleLibraries = {
}
ElvUIChat_GuildMemberStatusMessageHandler = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1798
bnetFriendDataCached = true
SendAchivementMessage = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1652
SetDefaultModulePrototype = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:405
ChatFrame_MessageEventHandler = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:592
ElvUIChat_AchievementMessageHandler = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1710
ToggleReplacement = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1578
name = "ElvUI_WindTools_ChatText"
Initialize = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:2055
IsEnabled = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:447
orderedModules = {
}
AddMessage = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:508
DisableModule = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:346
baseName = "ElvUI_WindTools"
Log = defined @ElvUI_WindTools/Core/Functions/Developer.lua:124
CheckLFGRoles = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:539
cache = {
}
RegisterMessage = defined @LibSharedMedia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:80
UnregisterMessage = defined @LibSharedMedia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:143
ProfileUpdate = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:2070
BN_FRIEND_INFO_CHANGED = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1969
PLAYER_ENTERING_WORLD = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1959
BetterSystemMessage = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1850
isSystemMessageHandled = true
IsModule = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:213
db = {
}
SetDefaultModuleState = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:383
MessageFormatter = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:1347
HandleName = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:565
SetEnabledState = defined @ElvUI_Libraries/Core/Ace3/AceAddon-3.0/AceAddon-3.0.lua:420
MayHaveBrackets = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:584
enabledState = true
HandleShortChannels = defined @ElvUI_WindTools/Modules/Social/ChatText.lua:477
RegisterEvent = defined @LibSharedMedia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:80
UnregisterAllMessages = defined @LibSharedMedia-3.0/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
ShortChannel = defined @ElvUI_WindTools/