here is the error code from someone who just created a post in the CLassicLFG to be broadcasted

Message: SendChatMessage(): Invalid escape code in chat message
Time: Sat Feb 1 11:00:17 2020
Count: 2
Stack: SendChatMessage(): Invalid escape code in chat message
[C]: ?
[C]: in function SendChatMessage' ...ce\AddOns\ClassicLFG\src\networking\chat-network.lua:74: in function SendMessage'
...ce\AddOns\ClassicLFG\src\networking\chat-network.lua:67: in function SendObject' ...terface\AddOns\ClassicLFG\src\networking\network.lua:82: in function SendObject'
...ace\AddOns\ClassicLFG\src\core\group-broadcaster.lua:24: in function <...ace\AddOns\ClassicLFG\src\core\group-broadcaster.lua:21>

Locals: (*temporary) = "CLFG_Network#tjlqjTp9#3#3#STitle^SLF~Healer~|DM:E~Jumpers!^SSource^T^SChannel^STrade~-~City^SType^SCHAT^t^SMembers^T^SItems^T^SHead^T^SIsHead^B^t^t^SSize^N0^t^t^t^^"
(*temporary) = "CHANNEL"
(*temporary) = nil
(*temporary) = "5"

Fixed in newest version!