Atlas Chat - No Backdoor

It doesnt let me type in chat, instead it says this in console

[DarkRP] lua/includes/modules/http.lua:100: Tried to use a NULL entity!
1. SteamID64 - [C]:-1
2. v - lua/includes/modules/http.lua:100
3. unknown - gamemodes/darkrp/gamemode/modules/chat/sv_chat.lua:139